MaCalculatriceEnLigne MCP Server
io.github.tresor4k/macalc-mcp
answering
MaCalculatriceEnLigne is answering right now. Last checked 3 min ago. It exposes 446 tools. Last commit 3 Jul 2026.
Calculatrices francaises : salaire net, SMIC, impots, bareme kilometrique, TVA, conversions.
Uptime history
40 hours of history
40 hours agonow
100.0%
Uptime 24h
91 of 91 checks
446
Tools
read from the server
335 ms
Response time
average over 24h
1
Stars
last commit 3 Jul 2026
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.
run in your terminal
claude mcp add macalc-mcp --transport http https://macalculatriceenligne.com/api/mcp~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"macalc-mcp": {
"url": "https://macalculatriceenligne.com/api/mcp"
}
}
}~/.codex/config.toml
[mcp_servers.macalc-mcp]
url = "https://macalculatriceenligne.com/api/mcp".cursor/mcp.json
{
"mcpServers": {
"macalc-mcp": {
"url": "https://macalculatriceenligne.com/api/mcp"
}
}
}.vscode/mcp.json
{
"mcpServers": {
"macalc-mcp": {
"url": "https://macalculatriceenligne.com/api/mcp"
}
}
}Available tools 446
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
calculate
calculate_1rm_table
Generate a full 1RM-to-12RM repetition table from a known lift using Epley formula. Returns: {input_weight, input_reps, estimated_1rm}. See list_bundles for related 'sport' calculators.
calculate_add_hours
Add two time durations and return the total in hours and minutes. See list_bundles for related 'temps-rh' calculators.
calculate_age
Calculate exact age in years, months and days from a birth date. Returns: {today, age_years, age_months, age_days, total_days_lived, days_to_next_birthday}. See list_bundles for related 'temps-rh' calculators.
calculate_age_in_units
Calculate exact age in multiple units from birth date. Returns: {weeks, hours, minutes, seconds}. See list_bundles for related 'fun' calculators.
calculate_alcohol_units
Compute alcohol units (UK) and grams of pure alcohol in a drink. Use for health tracking and limit awareness. Inputs: volume mL, ABV %. Returns UK units, grams of pure alcohol, and standard-drink equivalent. See list_bundles for related 'cuisine' calculators.
calculate_altitude_sickness
Assess altitude sickness risk and recommend acclimatization schedule. Returns: {risk_level, risk_color, recommended_acclimatization_days, symptoms_to_watch, recommendations}. See list_bundles for related 'voyage' calculators.
calculate_angle_convert
Convert angles between degrees, radians, gradians and turns. Returns: {original}. See list_bundles for related 'conversions' calculators.
calculate_annuity_payment
Calculate periodic payment amount for a loan or annuity. Returns: {monthly_payment_eur, total_paid_eur, total_interest_eur}. See list_bundles for related 'finance-universal' calculators.
calculate_anything
Universal AI-powered calculator — handles any calculation not covered by specialized tools. Requires premium subscription.
calculate_aquarium_volume
Compute aquarium water volume in L and US gallons. Use for fishkeeping, dosing, and stocking decisions. Inputs: shape (rectangular/cylindrical/bow-front), L×W×H or radius×height in cm. Returns liters and gallons. See list_bundles for related 'animaux' calculators.
calculate_area
Compute area for common 2D shapes (rectangle, triangle, circle, trapezoid, etc.). Use for geometry, real estate, or paint estimates. Inputs: shape + dimensions. Returns area in input-units squared. See list_bundles for related 'math' calculators.
calculate_auto_entrepreneur
Calculate French auto-entrepreneur (micro-enterprise) net income and social charges. Returns: {social_charges_rate_pct, social_charges, abatement_fiscal_pct, taxable_income_approx, net_before_tax, cfe_estimate_eur}. See list_bundles for related 'finance-france' calculators.
calculate_average
Compute simple, weighted, geometric, or harmonic mean. Use for grade averages, returns, or rates. Inputs: values list, optional weights, mode. Returns mean and detail. See list_bundles for related 'math' calculators.
calculate_bac_points
Estimate French Baccalauréat final score from grades and coefficients. Use to track lycée results before official scores. Inputs: grades by subject with coefficients. Returns weighted average and mention. See list_bundles for related 'education' calculators.
calculate_baking_altitude
Adjust baking recipe for high altitude (less leavening, more liquid, higher temp). Use for mountain cooking. Inputs: altitude m, ingredients. Returns adjusted recipe. See list_bundles for related 'cuisine' calculators.
calculate_baking_conversion
Convert baking measurements between cups, tablespoons, grams, and milliliters for common ingredients. Use for translating recipes across regions. Inputs: ingredient, value, from-unit, to-unit. Returns converted quantity. See list_bundles for related 'cuisine' calculators.
calculate_base_converter
Convert numbers between bases (binary, octal, decimal, hexadecimal, any base 2-36). Returns: {input, decimal_value, result}. See list_bundles for related 'math' calculators.
calculate_beam_load
Calculate max bending moment and shear for a beam under uniform distributed load. Returns: {load_kN_per_m, max_moment_kNm, max_shear_kN, note}. See list_bundles for related 'construction' calculators.
calculate_belgian_car_advantage
Calculate Belgian benefit-in-kind for company car (avantage de toute nature voiture). Returns: {co2_reference, benefit_rate_pct, annual_taxable_benefit, monthly_taxable_benefit, estimated_monthly_tax_impact}. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_donation
Compute Belgian donation tax (droits de donation) by region (Bruxelles/Flandre/Wallonie). Use for estate planning in Belgium. Inputs: region, amount, recipient relation. Returns tax due and effective rate. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_income_tax
Calculate Belgian personal income tax (IPP/PB) using 2026 progressive brackets. Returns: {income, tax_free_amount, taxable_base, income_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_pension
Estimate Belgian retirement pension based on career years and average salary. Use for retirement planning in Belgium. Inputs: years of contribution, average salary, status (employee/self-employed). Returns monthly pension estimate. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_salary
Convert Belgian gross monthly salary to net salary (approximation). Returns: {gross_monthly, social_cotisations_13_07pct, special_social_contribution, professional_withholding_tax, net_monthly, net_annual, ...}. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_social_contributions
Calculate Belgian self-employed social contributions (cotisations INASTI). Returns: {annual_income, tier1_up_to_73850_at_20_5pct, tier2_73850_to_108785_at_14_16pct, tier3_above_108785, total_contributions, effective_rate_pct}. See list_bundles for related 'finance-belgique' calculators.
calculate_belgian_vat
Calculate Belgian VAT — convert between HT and TTC. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-belgique' calculators.
calculate_biorhythm
Compute physical, emotional, and intellectual biorhythm cycles for a date based on birth date. Use for self-tracking enthusiasts (pseudoscience). Inputs: birth date, target date. Returns 3 cycle values (-100 to +100) and zone. See list_bundles for related 'fun' calculators.
calculate_blood_alcohol
Estimate blood alcohol content (BAC) using Widmark formula. Returns: {bac_percent, legal_status_fr, estimated_sober_in_hours}. See list_bundles for related 'sante' calculators.
calculate_bmi
Calculate Body Mass Index (BMI) and weight category. See list_bundles for related 'sante' calculators.
calculate_bmr
Calculate Basal Metabolic Rate using Mifflin-St Jeor equation. Returns: {bmr_kcal}. See list_bundles for related 'sante' calculators.
calculate_body_fat
Estimate body fat percentage from BMI, age and sex using Deurenberg equation. Returns: {body_fat_pct}. See list_bundles for related 'sante' calculators.
calculate_body_fat_navy
Calculate body fat percentage using the US Navy circumference method. See list_bundles for related 'sante' calculators.
calculate_bpm_to_ms
Convert BPM tempo to millisecond delay times for different note values. See list_bundles for related 'musique' calculators.
calculate_bra_size
Calculate bra size in FR, US or UK system from underbust and bust measurements (cm). Returns: {band_size, size, cup_diff_cm}. See list_bundles for related 'textile-mode' calculators.
calculate_bra_size_convert
Convert bra size between FR, US, UK and EU systems. Returns: {FR, US, UK, EU}. See list_bundles for related 'textile-mode' calculators.
calculate_braking_distance
Compute reaction + braking distance by road condition (dry/wet/icy). Use for driver safety education. Inputs: speed km/h, reaction time s, road type. Returns total stopping distance m. See list_bundles for related 'auto-transport' calculators.
calculate_braquet
Compute cycling gear ratio (braquet) and development per pedal turn. Use for road cycling gear analysis. Inputs: chainring teeth, sprocket teeth, wheel diameter mm. Returns ratio and meters per pedal turn. See list_bundles for related 'sport' calculators.
calculate_bread_hydration
Compute baker's hydration % = water/flour×100. Use for bread recipe analysis. Inputs: flour g, water g. Returns hydration % and dough type (firm/standard/wet). See list_bundles for related 'cuisine' calculators.
calculate_break_even
Compute break-even point in units and revenue. Use for business plans and pricing decisions. Inputs: fixed costs, price/unit, variable cost/unit. Returns break-even units and revenue. See list_bundles for related 'finance-universal' calculators.
calculate_breeding_due_date
Compute due date for animal breeding given mating date and species gestation period. Use for breeders. Inputs: species (dog/cat/horse/rabbit/cow), mating date. Returns due date and gestation milestones. See list_bundles for related 'animaux' calculators.
calculate_brevet_points
Estimate French Brevet (DNB) score from grades and continuous-control marks. Use for collège students forecasting their result. Inputs: grades by subject, continuous control. Returns total points and mention. See list_bundles for related 'education' calculators.
calculate_brick_count
Compute bricks or blocks needed for a wall including waste margin. Use for masonry projects. Inputs: wall dimensions, brick size, waste %. Returns brick count and pallets. See list_bundles for related 'construction' calculators.
calculate_buoyancy
Compute buoyancy force, displaced volume, or floating analysis (Archimedes). Use for physics or shipping. Inputs: object mass/volume, fluid density. Returns buoyant force and float/sink verdict. See list_bundles for related 'science' calculators.
calculate_burn_rate
Compute startup monthly burn rate and runway. Use for fundraising or expense control. Inputs: cash on hand, monthly expenses, monthly revenue. Returns burn, runway in months, profitability date. See list_bundles for related 'finance-universal' calculators.
calculate_cable_section
Compute electrical cable cross-section (mm²) per NF C 15-100. Use for residential wiring. Inputs: power kW, voltage, length, max voltage drop %. Returns required section. See list_bundles for related 'construction' calculators.
calculate_cable_section_electrical
Calculate cable section from power, voltage, distance and max voltage drop. Returns: {current_a, allowed_drop_v, calculated_section_mm2, recommended_mm2}. See list_bundles for related 'science' calculators.
calculate_cac_ltv_ratio
Compute Customer Acquisition Cost vs Lifetime Value ratio. Use for SaaS unit economics analysis (target ≥3.0). Inputs: total CAC, LTV. Returns ratio and health verdict. See list_bundles for related 'finance-universal' calculators.
calculate_caffeine_clearance
Compute remaining caffeine in body over time using 5-hour half-life. Use for sleep planning. Inputs: caffeine mg, time since intake. Returns remaining mg and clearance forecast. See list_bundles for related 'sante' calculators.
calculate_caffeine_half_life
Calculate remaining caffeine in body after time elapsed. Returns: {hours_to_below_25mg, safe_to_sleep}. See list_bundles for related 'sante' calculators.
calculate_caffeine_intake
Track caffeine intake against the safe daily limit (400 mg adult). Use for monitoring coffee/tea/soda consumption. Inputs: list of drinks (type, quantity). Returns total mg, % of limit, time-of-day distribution. See list_bundles for related 'cuisine' calculators.
calculate_calories_burned
Estimate calories burned during physical activity using MET values. Returns: {calories_burned}. See list_bundles for related 'sante' calculators.
calculate_canada_combined_tax
Calculate combined Quebec + federal income tax with the Quebec federal abatement (16.5%). Returns: {income_cad, quebec_provincial_tax, federal_gross_tax, federal_abatement_qc, federal_net_tax, total_combined_tax, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_canada_ei
Calculate Canadian Employment Insurance (EI) premiums for Quebec and non-Quebec residents. Returns: {gross_annual_cad, max_insurable_earnings, insurable_earnings, employee_rate_pct, employee_premium}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_canada_federal_tax
Calculate Canadian federal income tax (CRA) with basic personal amount deduction. Returns: {income_cad, basic_personal_amount, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_canada_rrq
Calculate Quebec Pension Plan (RRQ) contributions for employee. Returns: {gross_annual_cad, rrq_base_earnings, rrq_contribution_tier1, rrq_additional_earnings, rrq_contribution_tier2, total_rrq_contribution, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_capital_gains_property
Compute French property capital gains tax (plus-value immobilière) including duration abatements. Use for sellers of secondary residence. Inputs: purchase price, sale price, years held, work cost. Returns tax due, social charges, net gain. See list_bundles for related 'finance-france' calculators.
calculate_car_depreciation
Calculate car residual value: Y1:-25%, Y2:-15%, Y3:-10%, Y4-5:-8%, Y6+:-5%. Returns: {residual_value, total_dep, pct_lost}. See list_bundles for related 'auto-transport' calculators.
calculate_car_lease_vs_buy
Compare leasing vs buying a car over the same period. Use for automotive purchase decisions. Inputs: car price, lease monthly cost, loan rate, ownership years. Returns total costs and recommendation. See list_bundles for related 'finance-universal' calculators.
calculate_carbon_footprint
Estimate annual personal carbon footprint (tCO₂e). Use for sustainability awareness. Inputs: housing, transport, diet, lifestyle. Returns total emissions and breakdown. See list_bundles for related 'vie-quotidienne' calculators.
calculate_carbon_sequestration
Estimate CO2 sequestration by trees over their lifetime. Returns: {age_factor, annual_kg_co2_per_tree, annual_kg_co2_total, lifetime_kg_co2, lifetime_tonnes_co2, equivalent_cars_off_road_1yr}. See list_bundles for related 'astronomie-nature' calculators.
calculate_card_draw_probability
Calculate hypergeometric probability of drawing specific cards from a deck. Returns: {odds_one_in}. See list_bundles for related 'jeux-probabilites' calculators.
calculate_carpet_flooring
Compute flooring cost including waste margin. Use for renovation budget. Inputs: surface m², product price/m², waste %. Returns total cost and m² to order. See list_bundles for related 'vie-quotidienne' calculators.
calculate_cat_age
Convert cat age to human-equivalent years (15+9+4×). Use for feline health. Inputs: cat age years. Returns human-equivalent age and life stage. See list_bundles for related 'animaux' calculators.
calculate_cat_food
Calculate daily cat food quantity based on weight, age and lifestyle. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators.
calculate_cat_pregnancy
Compute cat due date from mating date (gestation 63-67 days). Use for breeders. Inputs: mating date. Returns due date window and milestones. See list_bundles for related 'animaux' calculators.
calculate_cheque_repas
Calculate Belgian meal voucher (cheque-repas / maaltijdcheque) benefit. Returns: {face_value_per_voucher, employer_contribution_per_voucher, employee_contribution_per_voucher, monthly_total_vouchers, monthly_employer_cost, monthly_employee_contribution, ...}. See list_bundles for related 'finance-belgique' calculators.
calculate_child_support
Estimate French child support (pension alimentaire) based on income, custody and number of children. Returns: {income, rate_pct, monthly_support, annual_support}. See list_bundles for related 'finance-france' calculators.
calculate_chinese_zodiac
Determine Chinese zodiac animal and element from birth year. Returns: {full_sign}. See list_bundles for related 'fun' calculators.
calculate_churn_rate
Compute customer or revenue churn rate over a period. Use for SaaS retention analysis. Inputs: starting customers, churned, period length. Returns churn %, retention %, and annualized rate. See list_bundles for related 'finance-universal' calculators.
calculate_clothing_size_convert
Convert clothing size between EU, US and UK systems. Returns: {original}. See list_bundles for related 'conversions' calculators.
calculate_compost_volume
Compute compost volume produced from kitchen and garden waste over a year. Use for compost bin sizing. Inputs: household size, garden size m². Returns L/year and recommended bin volume. See list_bundles for related 'jardinage' calculators.
calculate_compound_interest
Compute compound interest growth A=P(1+r/n)^(nt). Use for savings, retirement projections, investment forecasting. Returns final amount, total interest, and yearly breakdown. See list_bundles for related 'finance-universal' calculators.
calculate_compound_interest_monthly
Compute compound interest with monthly contributions (savings plan). Use for systematic savers. Inputs: initial amount, monthly contribution, annual rate %, years. Returns final value, total contributed, total interest. See list_bundles for related 'finance-universal' calculators.
calculate_concrete_mix
Compute cement, sand, gravel, and water for a given concrete volume (NF DTU 21). Use for construction projects. Inputs: volume m³, mix ratio. Returns weights of each ingredient. See list_bundles for related 'construction' calculators.
calculate_concrete_stairs
Calculate concrete stair dimensions, volume and materials using Blondel's formula. See list_bundles for related 'construction' calculators.
calculate_condominium_charges
Compute one owner's share of condominium charges from the budget and tantièmes. Use for syndic or owner verification. Inputs: total budget, tantièmes-owned, total tantièmes. Returns annual and monthly share. See list_bundles for related 'immobilier' calculators.
calculate_cone
Compute cone volume V=(1/3)πr²h and lateral/total surface area. Use for geometry or container design. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators.
calculate_confidence_interval
Compute confidence interval for a sample mean. Use for statistics, A/B test results, or polling. Inputs: mean, std dev, sample size, confidence (90/95/99%). Returns CI lower/upper bounds. See list_bundles for related 'math' calculators.
calculate_cooking_conversion
Convert recipe quantities between cups, ml, grams, oz, tbsp, tsp. Use for international recipe translation. Inputs: value, from, to, ingredient (for density). Returns: {original}. See list_bundles for related 'conversions' calculators.
calculate_cooking_time
Estimate cooking time for meat, fish, or vegetables based on weight, method, and doneness. Use for kitchen planning. Inputs: food type, weight g, cooking method (oven/grill/sous-vide), doneness. Returns time min and target internal temp. See list_bundles for related 'cuisine' calculators.
calculate_cost_per_use
Compute the cost-per-use of a purchase to evaluate value. Use for buying decisions on durable goods or subscriptions. Inputs: purchase price, expected uses or years. Returns cost per use and break-even use count. See list_bundles for related 'finance-universal' calculators.
calculate_cost_price
Calculate unit cost price from raw materials, labor, and overhead. Returns: {total_cost}. See list_bundles for related 'finance-universal' calculators.
calculate_crop_factor
Calculate camera crop factor and equivalent focal length based on sensor width. See list_bundles for related 'photographie' calculators.
calculate_crypto_profit_loss
Compute crypto trading profit/loss including fees. Use for crypto investors tracking realized P&L. Inputs: buy price, sell price, quantity, buy fee, sell fee. Returns net P&L, ROI %, break-even price. See list_bundles for related 'crypto' calculators.
calculate_crypto_tax_fr
Calculate French flat tax (30% PFU) on cryptocurrency capital gains at withdrawal. Returns: {gain_ratio}. See list_bundles for related 'crypto' calculators.
calculate_currency_cross_rate
Calculate cross exchange rate between two currencies via USD. Returns: {cross_rate_a_to_b, cross_rate_b_to_a}. See list_bundles for related 'conversions' calculators.
calculate_currency_exchange
Calculate currency exchange with bank margin and show fees lost. Returns: {amount_source, from_rate_vs_usd, to_rate_vs_usd, mid_market_amount, amount_after_margin, fees_lost, ...}. See list_bundles for related 'voyage' calculators.
calculate_curtain_fabric
Compute fabric meters needed for curtains, including hems and pattern repeat. Use for sewing. Inputs: window dimensions, fullness, pattern repeat. Returns fabric length to buy. See list_bundles for related 'textile-mode' calculators.
calculate_curtain_width
Compute total curtain width using a fullness factor (1.5-3.0×). Use for window dressing. Inputs: window width m, fullness ratio. Returns total fabric width. See list_bundles for related 'vie-quotidienne' calculators.
calculate_cycling_power
Estimate cycling power output considering gradient, speed and total mass. Returns: {power_watts, watts_per_kg}. See list_bundles for related 'sport' calculators.
calculate_cylinder
Compute cylinder volume V=πr²h and surface area A=2πr(r+h). Use for tanks, pipes, or containers. Inputs: radius, height. Returns volume and areas. See list_bundles for related 'math' calculators.
calculate_daily_protein
Calculate recommended daily protein intake based on weight and fitness goal. Returns: {rate_g_per_kg, daily_protein_g, calories_from_protein}. See list_bundles for related 'sante' calculators.
calculate_daily_vitamins
Check daily vitamin and mineral intake against RDA recommendations. Use for nutrition tracking. Inputs: list of foods with quantities. Returns % RDA per nutrient and deficiencies. See list_bundles for related 'cuisine' calculators.
calculate_data_transfer_time
Calculate file transfer time at a given connection speed. See list_bundles for related 'conversions' calculators.
calculate_day_of_week
Find the day of the week for any date (Zeller's congruence). Use for historical dates or birthday checks. Inputs: day, month, year. Returns weekday name. See list_bundles for related 'fun' calculators.
calculate_days_between
Calculate days, weeks, approximate months and working days between two dates. Returns: {weeks, months_approx, working_days}. See list_bundles for related 'temps-rh' calculators.
calculate_debt_capacity
Calculate maximum loan capacity using French HCSF 35% debt ratio rule. Returns: {max_monthly_payment, max_loan, note}. See list_bundles for related 'immobilier' calculators.
calculate_debt_service_ratio
Calculate debt-to-income ratio and maximum additional loan capacity. Returns: {ratio_pct, max_monthly_debt_35pct, max_additional_loan_payment, status}. See list_bundles for related 'immobilier' calculators.
calculate_debt_to_income
Compute debt-to-income (DTI) ratio. Use for mortgage qualification or financial health checks. Inputs: monthly debt, monthly gross income. Returns DTI % and risk category. See list_bundles for related 'finance-universal' calculators.
calculate_delivery_cost
Estimate shipping cost from weight, distance and service (standard vs express). Returns: {cost_eur, formula, note}. See list_bundles for related 'vie-quotidienne' calculators.
calculate_density
Compute density, mass, or volume given the other two. ρ=m/V. Use for materials, chemistry, fluid dynamics. Inputs: any 2 of (mass, volume, density). Returns the third. See list_bundles for related 'science' calculators.
calculate_density_convert
Convert density between kg/m³, g/cm³, lb/ft³, and lb/gal. Use for engineering, chemistry, fluid mechanics. Inputs: value, from-unit, to-unit. Returns converted density. See list_bundles for related 'conversions' calculators.
calculate_depth_of_field
Calculate depth of field, near/far focus limits and hyperfocal distance for a camera lens. Returns: {near_limit_m, far_limit_m, coc_mm}. See list_bundles for related 'photographie' calculators.
calculate_dew_point
Compute dew point temperature using Magnus formula. Use for HVAC, weather, comfort analysis. Inputs: temperature °C, relative humidity %. Returns dew point °C and comfort class. See list_bundles for related 'astronomie-nature' calculators.
calculate_dice_probability
Calculate dice roll probability for exact values, minimum or maximum targets. Returns: {probability}. See list_bundles for related 'jeux-probabilites' calculators.
calculate_dilution
Compute dilution C1·V1=C2·V2. Solve for any unknown. Use for chemistry, lab work, pharmacy. Inputs: any 3 of (C1, V1, C2, V2). Returns the fourth. See list_bundles for related 'science' calculators.
calculate_discount
Calculate discounted price with optional successive discounts. Returns: {original_price, price_after_first, effective_discount_pct}. See list_bundles for related 'finance-universal' calculators.
calculate_discount_effective
Compute the effective discount when stacking multiple promotions. Use for promo design or shopping comparisons. Inputs: original price, discount % list. Returns final price and effective single-discount equivalent. See list_bundles for related 'finance-universal' calculators.
calculate_distance_2d
Compute Euclidean distance between two 2D points. Use for geometry, mapping. Formula: √((x2−x1)²+(y2−y1)²). Inputs: x1,y1,x2,y2. Returns distance. See list_bundles for related 'math' calculators.
calculate_distance_3d
Compute Euclidean distance between two 3D points. Use for 3D modeling, physics. Formula: √(Δx²+Δy²+Δz²). Inputs: x1,y1,z1,x2,y2,z2. Returns distance. See list_bundles for related 'math' calculators.
calculate_distance_securite
Calculate safe following distance using the 2-second rule (French highway code). Returns: {safety_distance_2s_m, highway_3s_m, note}. See list_bundles for related 'auto-transport' calculators.
calculate_distance_to_horizon
Calculate the distance to the horizon from a given height. Returns: {distance_km, distance_miles, distance_nautical_miles}. See list_bundles for related 'astronomie-nature' calculators.
calculate_dog_age
Convert dog age to human-equivalent years using modern AAHA method. Use for canine health monitoring. Inputs: dog age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators.
calculate_dog_food
Calculate daily dog food quantity based on weight, age and activity level. Returns: {kcal_per_day}. See list_bundles for related 'animaux' calculators.
calculate_dog_pregnancy
Compute dog due date from mating date (gestation 63 days). Use for breeders. Inputs: mating date. Returns due date window and milestone dates. See list_bundles for related 'animaux' calculators.
calculate_dog_walking_calories
Compute calories burned by dog and human during a walk. Use for pet weight management. Inputs: dog weight, walk duration, pace. Returns calories burned by both. See list_bundles for related 'animaux' calculators.
calculate_dollar_cost_average
Calculate DCA portfolio value and performance for recurring crypto investments. See list_bundles for related 'crypto' calculators.
calculate_dpe_energy_class
Determine French DPE energy class from primary energy consumption. Returns: {note}. See list_bundles for related 'immobilier' calculators.
calculate_drain_slope
Compute required drain slope (% and cm/m) to ensure proper water flow per plumbing code. Use for plumbing or roof drainage. Inputs: pipe length, pipe diameter, application. Returns slope % and drop in cm. See list_bundles for related 'plomberie' calculators.
calculate_dress_alterations
Estimate dress alteration cost and time by alteration type. Use for tailoring or wedding-dress budgeting. Inputs: alterations needed (hem, sides, sleeves), garment type. Returns total cost estimate and time hours. See list_bundles for related 'textile-mode' calculators.
calculate_due_date
Calculate estimated due date using Naegele's rule and return trimester milestone dates
calculate_earthquake_energy
Calculate energy released by an earthquake from its magnitude. Returns: {energy_joules, tnt_equivalent_kg}. See list_bundles for related 'astronomie-nature' calculators.
calculate_ects_credits
Estimate ECTS credit workload (1 ECTS ≈ 25-30 study hours). Use for university course planning across Europe. Inputs: course hours, credits target. Returns expected workload and balance. See list_bundles for related 'education' calculators.
calculate_electrical_power
Compute electrical power for single or three-phase circuits. Use for electrical engineering. Inputs: voltage, current, phase, power factor. Returns power kW and apparent power kVA. See list_bundles for related 'science' calculators.
calculate_electricity_cost
Compute electricity cost for an appliance. Use for energy budgeting. Inputs: power W, daily usage hours, kWh price. Returns daily/monthly/yearly cost. See list_bundles for related 'vie-quotidienne' calculators.
calculate_electricity_cost_appliance
Compute annual electricity cost of a household appliance. Use for energy audit and replacement decisions. Inputs: power W, daily hours, kWh price. Returns annual cost and CO₂ kg. See list_bundles for related 'energie' calculators.
calculate_ellipse
Compute ellipse area A=π·a·b and approximate perimeter (Ramanujan). Use for elliptical fields, tracks, or design. Inputs: semi-major a, semi-minor b. Returns area and perimeter. See list_bundles for related 'math' calculators.
calculate_emergency_fund
Compute recommended emergency fund target (3-6 months of expenses). Use for personal financial planning. Inputs: monthly expenses, dependents count, income stability. Returns recommended fund and savings timeline. See list_bundles for related 'finance-universal' calculators.
calculate_employer_cost_fr
Compute total employer cost in France (gross + social charges). Use for hiring budget or freelance vs salary comparison. Inputs: gross salary, status (cadre/non-cadre). Returns employer cost and total charges. See list_bundles for related 'finance-france' calculators.
calculate_energy_physics
Calculate kinetic (½mv²), potential (mgh), mass-energy (E=mc²), or work (F·d). Returns: {energy_joules, energy_kj, energy_kwh}. See list_bundles for related 'science' calculators.
calculate_equation
Solve 1st degree (ax+b=0) or 2nd degree (ax²+bx+c=0) equations. Returns: {error}. See list_bundles for related 'math' calculators.
calculate_ev_charging_cost
Compute electric vehicle charging cost and time to full. Use for EV trip planning. Inputs: battery kWh, current %, target %, charger kW, kWh price. Returns cost and hours. See list_bundles for related 'energie' calculators.
calculate_excavation
Compute excavation volume (m³) and truck loads needed for a foundation, pool, or trench. Use for construction. Inputs: length, width, depth (m), bulking factor. Returns m³ to remove and 8m³-truck count. See list_bundles for related 'construction' calculators.
calculate_exchange_margin
Detect the hidden margin charged by a money exchanger over the mid-market rate. Use to compare currency exchange offers. Inputs: offered rate, mid-market rate. Returns margin %. See list_bundles for related 'voyage' calculators.
calculate_exchange_rate_margin
Calculate the margin charged on a currency exchange. Returns: {cost_per_1000_eur, rating}. See list_bundles for related 'voyage' calculators.
calculate_expected_value_bet
Calculate expected value and profitability of a bet or investment decision. Returns: {lose_probability}. See list_bundles for related 'jeux-probabilites' calculators.
calculate_exposure_triangle
Calculate the missing exposure value (aperture, shutter speed or ISO) given the other two. Returns: {ev_value, lv_value, shutter_speed_s}. See list_bundles for related 'photographie' calculators.
calculate_fabric_needed
Compute fabric meters needed for a garment by pattern. Use for sewing. Inputs: garment type, size, fabric width. Returns meters of fabric. See list_bundles for related 'textile-mode' calculators.
calculate_fabric_yardage
Calculate fabric needed for a garment in meters (includes 10% for pattern matching). Returns: {meters_needed, note}. See list_bundles for related 'textile-mode' calculators.
calculate_factorial_permutation
Calculate factorial, permutations P(n,r), and combinations C(n,r). Returns: {factorial}. See list_bundles for related 'math' calculators.
calculate_fertilizer_npk
Calculate NPK fertilizer quantities needed based on crop type and soil type. Returns: {total_kg}. See list_bundles for related 'jardinage' calculators.
calculate_fish_tank_heater
Compute aquarium heater wattage needed by tank volume and target temp. Use for aquarium setup. Inputs: tank L, current temp, target temp. Returns wattage W. See list_bundles for related 'animaux' calculators.
calculate_flight_distance
Calculate great-circle distance between two coordinates. See list_bundles for related 'voyage' calculators.
calculate_floor_area
Calculate total floor area and Carrez habitable area from a list of rooms. Returns: {rooms, total_area_m2, carrez_area_m2, note}. See list_bundles for related 'construction' calculators.
calculate_flow_rate_convert
Convert flow rate between L/s, L/min, L/h, m³/h, gpm, cfm. Use for plumbing, HVAC, or industrial design. Inputs: value, from-unit, to-unit. Returns converted flow rate. See list_bundles for related 'conversions' calculators.
calculate_food_cost_per_serving
Compute food cost per serving from ingredient costs. Use for restaurants, meal-prep services. Inputs: list of ingredients with cost and quantity used, servings. Returns cost per serving and total. See list_bundles for related 'cuisine' calculators.
calculate_force
Compute force using Newton's second law F=m·a. Use for physics problems. Inputs: mass kg, acceleration m/s². Returns force in newtons. See list_bundles for related 'science' calculators.
calculate_fraction
Perform fraction operations: add, subtract, multiply, divide, simplify. Returns: {input, result, decimal}. See list_bundles for related 'math' calculators.
calculate_fraction_operations
Add, subtract, multiply, or divide two fractions and return the simplified result. Use for math homework. Inputs: num1/den1, op, num2/den2. Returns result fraction (lowest terms). See list_bundles for related 'math' calculators.
calculate_freezer_duration
Return maximum recommended freezer storage duration for a food type. See list_bundles for related 'cuisine' calculators.
calculate_freezer_thaw_time
Estimate thawing time for frozen food by weight and method. Returns: {safe_temp_check, tip}. See list_bundles for related 'cuisine' calculators.
calculate_french_income_tax
Calculate French income tax (IR) for 2026 using progressive brackets per Article 197 CGI with family quotient system. Returns: {income, family_quotient, total_tax, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-france' calculators.
calculate_french_salary
Convert French gross salary to net salary for 2026 (cadre, non-cadre, or civil servant). Returns monthly/annual net, social contributions, employer cost. See list_bundles for related 'finance-france' calculators.
calculate_french_vat
Calculate French VAT (TVA) — convert between HT (before tax) and TTC (after tax). Supports all 4 French VAT rates. Returns: {amount_ht, amount_ttc, vat_amount, vat_rate}. See list_bundles for related 'finance-france' calculators.
calculate_frequency_note
Calculate the frequency of a musical note based on equal temperament tuning. See list_bundles for related 'musique' calculators.
calculate_fuel_consumption
Calculate fuel consumption in L/100km and MPG from distance and fuel used. Returns: {l_100km, mpg_us, mpg_uk, co2_g_km_petrol}. See list_bundles for related 'auto-transport' calculators.
calculate_fuel_cost
Compute fuel cost for a journey. Use for trip budgeting or company expense. Inputs: distance km, consumption L/100km, fuel price €/L. Returns total cost and L used. See list_bundles for related 'auto-transport' calculators.
calculate_fuel_economy_conversion
Convert between fuel economy units: L/100km, mpg-US, mpg-UK, km/L. Use for car comparisons across regions. Inputs: value, from-unit, to-unit. Returns converted economy. See list_bundles for related 'conversions' calculators.
calculate_future_value
Compute the future value (FV) of a present sum at a given interest rate. Use for savings projections. Inputs: present value, annual rate %, years, compounding frequency. Returns FV and total interest. See list_bundles for related 'finance-universal' calculators.
calculate_garden_soil
Compute soil volume (m³) and number of bags needed for a garden bed. Use for gardening. Inputs: area, depth, bag volume. Returns m³ and bag count. See list_bundles for related 'vie-quotidienne' calculators.
calculate_garden_sunlight_hours
Estimate effective daily sunlight hours for a garden based on latitude, month and orientation. See list_bundles for related 'jardinage' calculators.
calculate_garden_water_needs
Compute weekly water needs for a garden by area and plant type. Use for irrigation planning. Inputs: garden m², climate, plant mix. Returns L/week and watering frequency. See list_bundles for related 'jardinage' calculators.
calculate_gas_fee_eth
Calculate Ethereum transaction gas fee in ETH and USD. See list_bundles for related 'crypto' calculators.
calculate_gcd_lcm
Calculate GCD (PGCD) and LCM (PPCM) of two integers using Euclidean algorithm. Returns: {gcd, lcm}. See list_bundles for related 'math' calculators.
calculate_gear_ratio
Compute gear ratio and torque/speed multiplication. Use for mechanical engineering, cycling, automotive. Inputs: driver teeth, driven teeth. Returns ratio and torque multiplier. See list_bundles for related 'science' calculators.
calculate_glycemic_load
Calculate glycemic load (GL) per food and total for a meal. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators.
calculate_gpa_french
Convert French school grades (out of 20) to GPA and academic mention. See list_bundles for related 'education' calculators.
calculate_grade_average
Compute simple or weighted grade average. Use for school report cards. Inputs: grades list, optional weights/coefficients. Returns weighted average and missing-grade-needed forecast. See list_bundles for related 'education' calculators.
calculate_grade_needed
Calculate the grade needed on remaining exams to reach target average. Returns: {error}. See list_bundles for related 'education' calculators.
calculate_gravel_quantity
Compute gravel volume (m³) and weight (tonnes) for a surface and depth. Use for paths, foundations, drainage. Inputs: area, depth, gravel density. Returns volume and weight. See list_bundles for related 'construction' calculators.
calculate_grocery_unit_comparison
Compare unit prices of grocery items — normalizes g→kg, mL/cL→L. Returns: {best_value, savings_vs_priciest}. See list_bundles for related 'vie-quotidienne' calculators.
calculate_harvest_date
Estimate harvest date for vegetables based on sowing date and region. Returns: {harvest_date, days_to_harvest}. See list_bundles for related 'jardinage' calculators.
calculate_hat_size
Calculate hat size in FR/EU, US/UK systems and standard S/M/L/XL from head circumference (cm). Returns: {head_circumference_cm, FR_EU, US_UK, standard_size}. See list_bundles for related 'textile-mode' calculators.
calculate_heart_rate_zones
Calculate heart rate training zones Z1-Z5, optionally using Karvonen method. See list_bundles for related 'sante' calculators.
calculate_heat_index
Calculate the apparent temperature (heat index) from temperature and humidity. Returns: {heat_index_c, feels_warmer_by_degrees, risk_level}. See list_bundles for related 'astronomie-nature' calculators.
calculate_heat_pump_cop
Compute heat pump Coefficient of Performance (COP). Use for HVAC efficiency analysis. Inputs: heat output kW, electric input kW. Returns COP and seasonal SCOP estimate. See list_bundles for related 'energie' calculators.
calculate_horse_weight
Estimate horse weight using Carroll formula from heart girth and body length. Use for vets, feed dosing. Inputs: heart girth cm, body length cm. Returns weight kg. See list_bundles for related 'animaux' calculators.
calculate_hourly_cost
Compute fully-loaded hourly cost-to-company. Use for project pricing or freelance rate. Inputs: monthly salary, social charges %, billable hours/month. Returns true hourly cost. See list_bundles for related 'finance-france' calculators.
calculate_housing_aid
Estimate French housing aid (APL — Aide Personnalisee au Logement). Returns: {rent, rent_ceiling, estimated_apl, note}.
calculate_housing_loan_comparison
Compare multiple mortgage offers sorted by total cost. Returns: {offers_count, best_offer, comparison}. See list_bundles for related 'immobilier' calculators.
calculate_hydration
Compute recommended daily fluid intake by weight, activity, and weather. Use for athletes and outdoor workers. Inputs: weight kg, activity hours, temperature °C. Returns L/day and electrolyte recommendation. See list_bundles for related 'sante' calculators.
calculate_hydraulic_pressure
Compute hydraulic system pressure P=F/A. Use for hydraulic design. Inputs: force N, area m². Returns pressure in Pa, kPa, bar, psi. See list_bundles for related 'science' calculators.
calculate_hyperfocal_distance
Calculate hyperfocal distance and near/far sharp limits for a lens and aperture. See list_bundles for related 'photographie' calculators.
calculate_ideal_gas
Solve PV=nRT. Provide any 3 of: pressure_pa, volume_m3, moles, temperature_k. R=8.314. Returns: {error}. See list_bundles for related 'science' calculators.
calculate_ideal_weight
Estimate ideal body weight using Lorentz and Devine formulas. Returns: {lorentz_kg, devine_kg, average_kg}. See list_bundles for related 'sante' calculators.
calculate_ideal_weight_range
Compute healthy weight range based on BMI 18.5-24.9. Use for nutrition planning. Inputs: height cm. Returns ideal weight range (min, max) in kg and lb. See list_bundles for related 'sante' calculators.
calculate_impermanent_loss
Calculate impermanent loss for a DeFi liquidity pool position when price ratio changes. Returns: {value_in_pool_ratio}. See list_bundles for related 'crypto' calculators.
calculate_inflation_adjusted_value
Compute real (inflation-adjusted) purchasing power of a future amount. Use for retirement or savings goal in today's euros. Inputs: nominal future amount, years, average inflation %. Returns real value. See list_bundles for related 'finance-universal' calculators.
calculate_inflation_adjustment
Adjust a nominal amount to a target year using a constant inflation rate. Use for real-value comparisons across time. Inputs: amount, inflation rate %, years. Returns adjusted value and total inflation factor. See list_bundles for related 'finance-universal' calculators.
calculate_inheritance_tax
Calculate French inheritance tax (droits de succession) based on relationship and amount. Returns: {amount, abatement, taxable_base, tax_due, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-france' calculators.
calculate_insulation_r
Compute thermal resistance R = thickness/lambda. Use for insulation specification (RT2020/RE2020). Inputs: thickness m, conductivity λ W/m·K. Returns R-value m²·K/W. See list_bundles for related 'construction' calculators.
calculate_insulation_r_value
Calculate thermal R-value: R = thickness/lambda. Compare with RE2020 targets. Returns: {lambda_w_mk, r_value_m2KW, re2020_targets, walls_ok, roof_ok, floor_ok}. See list_bundles for related 'science' calculators.
calculate_insurance_estimate
Estimate annual car insurance from vehicle value, driver age and bonus-malus. Returns: {annual_premium_eur, monthly_eur, note}. See list_bundles for related 'auto-transport' calculators.
calculate_international_shipping
Estimate international shipping cost and delivery time by carrier and weight. Use for e-commerce or expat shipping. Inputs: from-country, to-country, weight kg, dimensions. Returns cost range and lead time. See list_bundles for related 'voyage' calculators.
calculate_inventory_eoq
Compute Economic Order Quantity (Wilson formula). Use for supply chain optimization. Inputs: annual demand, order cost, holding cost per unit. Returns EOQ and orders/year. See list_bundles for related 'finance-universal' calculators.
calculate_inventory_turnover
Compute inventory turnover ratio = COGS / avg inventory. Use for retail efficiency analysis. Inputs: COGS, average inventory value. Returns turnover and days-on-hand. See list_bundles for related 'finance-universal' calculators.
calculate_jet_lag_recovery
Estimate jet lag recovery time based on timezone difference and direction of travel. Returns: {direction, tips}. See list_bundles for related 'voyage' calculators.
calculate_kinetic_energy
Compute kinetic energy KE=½·m·v². Use for physics, vehicle safety analysis. Inputs: mass kg, velocity m/s. Returns kinetic energy in joules. See list_bundles for related 'science' calculators.
calculate_knitting_yarn
Calculate yarn needed for a knitting project (meters and number of 50g/100m balls). Returns: {meters_of_yarn, balls_50g_100m}. See list_bundles for related 'textile-mode' calculators.
calculate_laundry_cost
Calculate weekly and annual laundry cost (electricity + water + detergent). Returns: {per_load_eur, weekly_eur, annual_eur}. See list_bundles for related 'vie-quotidienne' calculators.
calculate_lawn_mowing_frequency
Calculate recommended lawn mowing interval based on grass type, season and rainfall. See list_bundles for related 'jardinage' calculators.
calculate_lawn_seed
Compute grass seed quantity (kg) for a lawn area at recommended seeding rate. Use for landscaping. Inputs: area m², seed rate g/m². Returns seed kg. See list_bundles for related 'construction' calculators.
calculate_leave_days
Calculate French paid leave (congés payés): 2.5 days/month, max 25 working days/year. Returns: {accrual_per_month, accrued_days, capped_at_max, max_annual_days, days_to_max, months_to_max}. See list_bundles for related 'temps-rh' calculators.
calculate_led_savings
Compute energy and money saved by switching from incandescent/halogen to LED. Use for energy audit. Inputs: old wattage, LED wattage, daily hours, kWh price, bulbs. Returns yearly savings. See list_bundles for related 'energie' calculators.
calculate_life_path_numerology
Calculate numerology life path number from birth date. Returns: {life_path_number, meaning}. See list_bundles for related 'fun' calculators.
calculate_light_year
Convert between light-years and km/miles. Use for astronomy. 1 ly = 9.461×10¹² km. Inputs: value, from, to. Returns converted distance. See list_bundles for related 'astronomie-nature' calculators.
calculate_light_year_distance
Convert astronomical distances between light-years, parsecs, AU, km. Returns: {light_years, parsecs, au, km, original}. See list_bundles for related 'astronomie-nature' calculators.
calculate_linear_regression
Calculate linear regression slope and intercept from summary statistics. Returns: {error}. See list_bundles for related 'math' calculators.
calculate_lmnp_amortization
Calculate LMNP rental property amortization and annual tax deduction (French tax regime). See list_bundles for related 'immobilier' calculators.
calculate_lmnp_deficit
Calculate LMNP (non-professional furnished rental) tax deficit. Returns: {total_deductible, deficit, note}. See list_bundles for related 'immobilier' calculators.
calculate_loan_early_repayment
Calculate interest savings from early partial loan repayment. Returns: {months_saved, new_months_remaining, interest_savings_eur, early_repayment_eur}. See list_bundles for related 'finance-universal' calculators.
calculate_loan_payment
Calculate monthly loan payment for any generic loan. Returns: {principal, monthly_payment, total_cost, total_interest}. See list_bundles for related 'finance-universal' calculators.
calculate_loan_to_value
Compute Loan-to-Value (LTV) ratio for mortgage risk. Use for mortgage application or PMI thresholds. Inputs: loan amount, property value. Returns LTV %, risk level, PMI required y/n. See list_bundles for related 'immobilier' calculators.
calculate_logarithm
Calculate logarithm in any base (natural, common, binary). Returns: {result}. See list_bundles for related 'math' calculators.
calculate_lottery_odds
Compute the odds of winning a lottery for various prize tiers. Use for awareness, education. Inputs: numbers to pick, total numbers, bonus number config. Returns probability and 1-in-N for each tier. See list_bundles for related 'jeux-probabilites' calculators.
calculate_luggage_weight
Calculate total luggage weight and compare to airline limits (carry-on, economy checked, business checked). Returns: {total_kg, status}. See list_bundles for related 'voyage' calculators.
calculate_malus_ecologique
French ecological malus 2026: CO2 g/km based tax on new vehicle registration. Returns: {malus_eur, threshold, max}. See list_bundles for related 'auto-transport' calculators.
calculate_marathon_splits
Generate target split times for a marathon, half-marathon, or other race. Use for race-day pacing. Inputs: target finish time, distance km. Returns 5K splits, halfway, and final pace. See list_bundles for related 'sport' calculators.
calculate_markup_margin
Convert between markup and margin (often confused). Use for pricing decisions or COGS reporting. Inputs: cost and either markup % or margin %. Returns selling price and the other metric. See list_bundles for related 'finance-universal' calculators.
calculate_maternity_leave_fr
Compute French maternity leave duration and IJSS allowance. Use for HR or expectant parents. Inputs: due date, prior children count, multiple birth. Returns pre/post-birth leave days and allowance estimate. See list_bundles for related 'finance-france' calculators.
calculate_max_heart_rate
Estimate maximum heart rate using standard or age-adjusted formulas. Returns: {max_heart_rate}. See list_bundles for related 'sante' calculators.
calculate_meat_cooking
Compute meat cooking time and target internal temperature by cut and doneness. Use for kitchen prep. Inputs: meat type, weight kg, doneness. Returns oven time and target temp. See list_bundles for related 'cuisine' calculators.
calculate_meat_cooking_time
Compute oven cooking time for meat by cut, weight, and doneness. Use for cooking. Inputs: meat type, weight kg, target doneness. Returns time min and oven temp °C. See list_bundles for related 'cuisine' calculators.
calculate_menstrual_cycle
Calculate next period, fertile window, and ovulation date. Returns: {next_period, ovulation_date, fertile_window_start, fertile_window_end}. See list_bundles for related 'sante' calculators.
calculate_mining_profitability
Compute crypto mining profitability after electricity costs. Use for miners evaluating ROI. Inputs: hashrate, power W, kWh price, network difficulty, coin price. Returns daily/monthly net profit. See list_bundles for related 'crypto' calculators.
calculate_moon_phase
Compute current moon phase and illumination % for any date. Use for astronomy, agriculture, fishing. Inputs: date. Returns phase name, illumination %, age in days. See list_bundles for related 'astronomie-nature' calculators.
calculate_moroccan_cnss
Calculate Moroccan CNSS contributions (employee and employer shares). Returns: {gross_monthly_mad, employee, employer, pension_ceiling_mad}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_moroccan_income_tax
Calculate Moroccan income tax (IR) using DGI progressive brackets with family deductions. Returns: {annual_income_mad, taxable_income, income_tax_mad, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_moroccan_profit_foncier
Calculate Moroccan property income tax (profit foncier / revenus fonciers). Returns: {annual_rent_mad, taxable_income, income_tax_mad, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_moroccan_vat
Compute Moroccan VAT (TVA) — convert between HT and TTC. Use for invoicing in Morocco. Inputs: amount, rate (20/14/10/7), mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_mortgage
Calculate mortgage/loan monthly payment, total cost, and optional amortization schedule. Returns: {principal, months, monthly_payment, total_interest, total_cost}. See list_bundles for related 'finance-france' calculators.
calculate_mortgage_insurance
Calculate mortgage insurance (assurance emprunteur) cost. Returns: {monthly_insurance, annual_insurance, total_insurance}. See list_bundles for related 'immobilier' calculators.
calculate_motor_torque
Compute motor torque from power and RPM. T(Nm)=9550·P(kW)/RPM. Use for mechanical sizing. Inputs: power kW, rpm. Returns torque in N·m and lb-ft. See list_bundles for related 'science' calculators.
calculate_moving_cost_detailed
Estimate detailed moving cost based on volume, distance and floor. Returns: {base_cost, total_cost_eur, note}. See list_bundles for related 'immobilier' calculators.
calculate_moving_volume
Estimate moving volume (m³) by home type and contents. Use for moving company quotes. Inputs: home size, rooms, furniture density. Returns m³ and truck size recommendation. See list_bundles for related 'vie-quotidienne' calculators.
calculate_net_worth
Calculate net worth and debt ratio from assets and liabilities. Returns: {net_worth_eur, debt_ratio_pct}. See list_bundles for related 'finance-universal' calculators.
calculate_night_shift_pay
Calculate night shift pay (21h-6h) with configurable premium percentage. Returns: {night_hourly_rate, total_pay, premium_earned}. See list_bundles for related 'temps-rh' calculators.
calculate_notary_fees
Calculate French notary fees (frais de notaire) for a real estate purchase. Returns: {price, droits_mutation, emoluments_notaire, frais_divers, total_frais, total_pct}. See list_bundles for related 'finance-france' calculators.
calculate_notary_fees_detailed
Detailed breakdown of French notary fees by component (taxes, emoluments, debours). Use for property buyers in France. Inputs: property price, type (new/old), department. Returns total fees and per-component breakdown. See list_bundles for related 'finance-france' calculators.
calculate_number_base_convert
Convert a number between bases 2 (binary), 8 (octal), 10 (decimal), and 16 (hex). Use for programming. Inputs: value, from-base, to-base. Returns converted number. See list_bundles for related 'conversions' calculators.
calculate_ohms_law
Compute Ohm's law: V=I·R. Solve for any of V, I, R given the other two. Use for electronics. Inputs: any 2 of (V volts, I amps, R ohms). Returns the third. See list_bundles for related 'science' calculators.
calculate_one_rep_max
Estimate 1 repetition maximum from submaximal lift using Epley, Brzycki and Lombardi formulas. Returns: {epley_1rm, brzycki_1rm, lombardi_1rm, average_1rm}. See list_bundles for related 'sante' calculators.
calculate_overtime_fr
Compute French overtime pay (heures supplémentaires) per labor code. Use for HR or employee verification. Inputs: hourly rate, normal hours, overtime hours. Returns gross overtime pay with 25%/50% premiums. See list_bundles for related 'finance-france' calculators.
calculate_overtime_pay_fr
Calculate French overtime pay: first 8h at +25%, beyond 8h at +50% (weekly threshold 35h). Returns: {hours_at_25pct, hours_at_50pct, pay_25pct_zone, pay_50pct_zone, total_overtime_pay, extra_vs_normal}. See list_bundles for related 'temps-rh' calculators.
calculate_ovulation
Calculate ovulation date and fertile window from last period and cycle length. Returns: {lmp, ovulation_date, fertile_window_start, fertile_window_end, next_period}. See list_bundles for related 'sante' calculators.
calculate_paint_needed
Compute paint quantity for walls including coats and waste margin. Use for renovation budget. Inputs: room dimensions, coats, openings. Returns paint liters and recommended buying. See list_bundles for related 'construction' calculators.
calculate_paint_quantity
Compute paint liters needed for a surface with chosen number of coats. Use for painting projects. Inputs: surface m², coats, paint coverage m²/L. Returns liters and number of cans. See list_bundles for related 'construction' calculators.
calculate_paper_size_convert
Get dimensions (mm, in) of standard paper formats (A0-A10, B0-B10, US Letter, Legal, Tabloid). Use for printing. Inputs: format name. Returns dimensions in mm and inches. See list_bundles for related 'conversions' calculators.
calculate_parcoursup_points
Estimate Parcoursup admission score from bac + lycée grades. Use for French university candidates. Inputs: grades and coefficients per subject. Returns estimated score. See list_bundles for related 'education' calculators.
calculate_parcoursup_score
Estimate Parcoursup weighted score from French baccalaureate component grades. See list_bundles for related 'education' calculators.
calculate_part_time
Calculate part-time work percentage and optional pro-rata salary. Returns: {percentage, prorata_salary}. See list_bundles for related 'temps-rh' calculators.
calculate_passport_validity
Check if passport is valid for travel (6-month rule). Returns: {note}. See list_bundles for related 'voyage' calculators.
calculate_pasta_portions
Calculate dry pasta, water and salt for a given number of people. See list_bundles for related 'cuisine' calculators.
calculate_pendulum_period
Compute simple pendulum period T=2π√(L/g). Use for physics homework or clock design. Inputs: length m, gravity m/s² (default 9.81). Returns period in seconds. See list_bundles for related 'science' calculators.
calculate_percentage
Calculate percentages: value of total, percentage change, what percent. See list_bundles for related 'math' calculators.
calculate_percentage_change
Compute % change between two values, signed (increase or decrease). Use for performance comparisons, statistics. Inputs: old value, new value. Returns absolute and relative change. See list_bundles for related 'math' calculators.
calculate_percentile_rank
Compute the percentile rank of a value within a dataset. Use for benchmarking scores or salaries. Inputs: value, dataset (list of numbers). Returns percentile (0-100). See list_bundles for related 'math' calculators.
calculate_perimeter
Calculate perimeter/circumference for common shapes. Returns: {shape, perimeter}. See list_bundles for related 'math' calculators.
calculate_pet_age
Convert pet age (dog/cat) to human-equivalent years. Use for pet health monitoring. Inputs: animal type, age years, breed size. Returns human-equivalent age. See list_bundles for related 'animaux' calculators.
calculate_pet_bmi
Estimate body condition score proxy (BMI) for dogs and cats. Returns: {thresholds}. See list_bundles for related 'animaux' calculators.
calculate_pet_food_portion
Compute daily food portion (g) for dogs and cats by weight, age, activity. Use for pet feeding. Inputs: animal type, weight, activity, life stage. Returns grams/day and meal split. See list_bundles for related 'animaux' calculators.
calculate_pet_medication_dose
Compute veterinary medication dose by pet weight (mg/kg). Use for medication administration. Inputs: weight kg, dose mg/kg. Returns total mg and tablet count. See list_bundles for related 'animaux' calculators.
calculate_pet_vaccination_schedule
Generate upcoming vaccination schedule for a puppy or kitten. Use for pet care planning. Inputs: pet type, birth date, last vaccine date. Returns upcoming dates and vaccines. See list_bundles for related 'animaux' calculators.
calculate_ph
Compute pH from H+ concentration or vice versa. Use for chemistry or aquarium care. Formula: pH=-log10[H+]. Inputs: pH or [H+] mol/L. Returns the missing value and acidity class. See list_bundles for related 'science' calculators.
calculate_pinel_tax_reduction
Compute French Pinel rental investment tax reduction (rates 2026). Use to evaluate Pinel real estate investment savings. Inputs: investment amount, duration (6/9/12y). Returns total tax reduction and yearly amount. See list_bundles for related 'immobilier' calculators.
calculate_pipe_diameter
Calculate the minimum pipe diameter required for a given flow rate and maximum velocity. See list_bundles for related 'plomberie' calculators.
calculate_pipe_flow_rate
Calculate water flow rate through a pipe using the Hazen-Williams formula. Returns: {C_coefficient}. See list_bundles for related 'plomberie' calculators.
calculate_planet_weight
Compute your weight on other planets using gravity ratios. Use for fun, education, sci-fi. Inputs: weight on Earth (kg). Returns weight on each planet of the solar system. See list_bundles for related 'astronomie-nature' calculators.
calculate_plaster
Calculate plaster volume and weight for a given surface and thickness. Returns: {area_m2, volume_m3, weight_kg, bags_25kg}. See list_bundles for related 'construction' calculators.
calculate_poker_hand_probability
Compute probability of common poker hands (straight, flush, full house, etc.) given a starting hand. Use for poker strategy. Inputs: hole cards, community cards. Returns probability per hand category. See list_bundles for related 'jeux-probabilites' calculators.
calculate_pool_chlorine
Compute chlorine dosage (g) for pool maintenance based on volume and target ppm. Use for pool care. Inputs: pool volume m³, target chlorine ppm, current ppm. Returns chlorine grams. See list_bundles for related 'construction' calculators.
calculate_pool_volume
Compute swimming pool water volume in m³ and liters. Use for pool maintenance dosing. Inputs: shape, dimensions. Returns volume m³ and L. See list_bundles for related 'vie-quotidienne' calculators.
calculate_portage_salarial
Estimate net income from portage salarial (freelance via umbrella company). Returns: {portage_management_fee_10pct, social_charges_45pct, net_monthly, net_annual_estimate, net_ratio_pct}. See list_bundles for related 'finance-france' calculators.
calculate_portfolio_allocation
Calculate portfolio allocation amounts by percentage for major crypto asset classes. Returns: {allocation_pct, sum_pct}. See list_bundles for related 'crypto' calculators.
calculate_power_unit_convert
Convert power values between W, kW, HP, BTU/h, cal/s. Returns: {original}. See list_bundles for related 'conversions' calculators.
calculate_pregnancy_due_date
Calculate due date and current gestational week from last period. Returns: {due_date}. See list_bundles for related 'sante' calculators.
calculate_present_value
Compute the present value (PV) of a future sum given a discount rate. Use in DCF, NPV, or retirement planning. Inputs: future value, annual rate %, years. Returns PV and discount factor. See list_bundles for related 'finance-universal' calculators.
calculate_pressure_convert
Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, weather, medicine. Inputs: value, from-unit, to-unit. Returns: {original}. See list_bundles for related 'conversions' calculators.
calculate_prime_activite
Estimate French prime d'activité monthly amount (CAF benefit). Use for low-income workers checking eligibility. Inputs: net monthly salary, household composition. Returns estimated benefit and eligibility note. See list_bundles for related 'finance-france' calculators.
calculate_print_resolution
Calculate print DPI quality and maximum print size from image pixel dimensions. Returns: {effective_dpi}. See list_bundles for related 'photographie' calculators.
calculate_probability_binomial
Calculate binomial probability P(X=k) and cumulative P(X<=k). Returns: {exact_probability, cumulative_probability, std_deviation}. See list_bundles for related 'education' calculators.
calculate_profit_margin
Calculate gross margin, net margin, and markup percentage. Returns: {revenue, cost}. See list_bundles for related 'finance-universal' calculators.
calculate_projectile_motion
Compute projectile trajectory: range, max height, time of flight. Use for physics or ballistics. Inputs: initial velocity, launch angle, height. Returns range, peak, flight time. See list_bundles for related 'science' calculators.
calculate_property_capital_gains_fr
Calculate French property capital gains tax after holding-period abatements. Returns: {raw_gain_eur, taxable_ir_eur, taxable_ps_eur, tax_ir_eur, tax_ps_eur, total_tax_eur, ...}. See list_bundles for related 'finance-france' calculators.
calculate_property_tax_estimate_fr
Estimate French taxe foncière from cadastral value and commune rate. Returns: {estimated_tax_eur, taxable_base, commune_rate_pct}. See list_bundles for related 'immobilier' calculators.
calculate_property_tax_fr
Compute French taxe foncière (annual property tax). Use for owners of property in France. Inputs: cadastral rental value (valeur locative), commune rate %. Returns annual tax due. See list_bundles for related 'immobilier' calculators.
calculate_property_transfer_tax
Compute French property transfer tax (droits de mutation) by department. Use for property buyers. Inputs: property price, department, type (new/old). Returns tax due and effective rate. See list_bundles for related 'immobilier' calculators.
calculate_ptz_eligibility
Check French PTZ (zero-rate loan) eligibility and maximum amount. Returns: {income_ceiling, ptz_max_pct_of_operation, note}. See list_bundles for related 'immobilier' calculators.
calculate_puissance_fiscale
French fiscal horsepower CV = (CO2/45) + (P_kW/40)^1.6. Returns: {cv_raw, cv_fiscaux}. See list_bundles for related 'auto-transport' calculators.
calculate_pump_power
Compute pump power requirement. P=ρ·g·H·Q/η. Use for fluid system design. Inputs: flow m³/h, head m, fluid density, efficiency. Returns kW. See list_bundles for related 'science' calculators.
calculate_purchasing_power
Compare purchasing power between two years. Use to translate historical prices, salaries, or savings to today's value. Inputs: amount, from-year, to-year, average inflation %. Returns equivalent value. See list_bundles for related 'finance-universal' calculators.
calculate_pyramid
Compute pyramid volume V=(1/3)·base_area·height. Use for geometry or architecture. Inputs: base area, height (and optional slant for surface area). Returns volume and surface area. See list_bundles for related 'math' calculators.
calculate_pythagoras
Find missing side of right triangle using Pythagorean theorem. Returns: {error}. See list_bundles for related 'math' calculators.
calculate_quadratic_equation
Solve quadratic equation ax²+bx+c=0 with discriminant analysis. Use for math homework or physics problems. Inputs: coefficients a, b, c. Returns roots (real or complex), discriminant, and vertex. See list_bundles for related 'math' calculators.
calculate_quebec_income_tax
Calculate Quebec provincial income tax (Revenu Québec) with basic personal amount deduction. Returns: {income_cad, basic_personal_amount, taxable_income, provincial_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_race_prediction
Predict race time for a target distance using Riegel formula. Returns: {predicted_time_minutes, predicted_formatted, predicted_pace_min_km}. See list_bundles for related 'sport' calculators.
calculate_radioactive_decay
Compute remaining quantity after radioactive decay. Use for physics or carbon dating. Formula: N=N0·(0.5)^(t/half-life). Inputs: initial qty, half-life, elapsed time. Returns remaining qty. See list_bundles for related 'science' calculators.
calculate_rainwater_collection
Estimate annual rainwater collection volume from a roof. See list_bundles for related 'astronomie-nature' calculators.
calculate_raised_bed_soil
Compute soil volume needed to fill a raised garden bed. Use for gardening setup. Inputs: length, width, depth (m). Returns soil m³, bag count, mix recommendation (40% compost / 30% topsoil / 30% sand). See list_bundles for related 'jardinage' calculators.
calculate_ratio_simplify
Simplify a ratio to lowest terms using GCD. Use for proportions, mixing, or scaling. Inputs: a, b (and optional c). Returns simplified ratio. See list_bundles for related 'math' calculators.
calculate_reading_time
Estimate reading time for a text based on word count. Returns: {hours_minutes}. See list_bundles for related 'education' calculators.
calculate_real_estate_agency_fees
Calculate French real estate agency fees using sliding scale. Returns: {agency_fees, scale}. See list_bundles for related 'immobilier' calculators.
calculate_recipe_nutrition
Compute total calories, protein, carbs, fat for a recipe and per serving. Use for meal planning or nutrition labels. Inputs: list of ingredients with grams, servings count. Returns macro breakdown per serving and total. See list_bundles for related 'cuisine' calculators.
calculate_recipe_scale
Scale recipe quantities to a new servings count. Use for adjusting recipes. Inputs: ingredients with quantities, original servings, target servings. Returns adjusted quantities. See list_bundles for related 'cuisine' calculators.
calculate_recipe_scaling
Scale recipe ingredients up or down by a factor or new servings count. Use for cooking adjustments. Inputs: ingredients list, original servings, new servings. Returns scaled ingredient list. See list_bundles for related 'cuisine' calculators.
calculate_regular_polygon
Compute area, perimeter, and apothem of a regular n-gon. Use for geometry or tiling. Inputs: number of sides, side length. Returns full geometric properties. See list_bundles for related 'math' calculators.
calculate_rent_increase_irl
Calculate rent increase allowed by French IRL index. Returns: {new_rent_eur, increase_eur}. See list_bundles for related 'finance-france' calculators.
calculate_rent_ratio
Compute the rent-to-income ratio. Use to assess housing affordability (rule of thumb: keep under 33%). Inputs: monthly rent, monthly gross income. Returns rent ratio % and verdict. See list_bundles for related 'immobilier' calculators.
calculate_rental_profitability
Compute net rental profitability after taxes and charges. Use for real estate investment analysis. Inputs: purchase price, monthly rent, charges, vacancy %, tax bracket. Returns net yield % and cash flow. See list_bundles for related 'immobilier' calculators.
calculate_rental_yield
Calculate gross and net rental yield for a real estate investment. See list_bundles for related 'immobilier' calculators.
calculate_rental_yield_gross
Calculate gross rental yield from property price and monthly rent. Returns: {gross_yield_pct}. See list_bundles for related 'immobilier' calculators.
calculate_rental_yield_net
Calculate net rental yield after charges and vacancy. Returns: {net_yield_pct, effective_annual_rent, net_income}. See list_bundles for related 'immobilier' calculators.
calculate_retirement_date
Estimate retirement date from birth date and country legal retirement age. Returns: {retirement_age, retirement_date, years_remaining, already_retired, note}. See list_bundles for related 'temps-rh' calculators.
calculate_retirement_pension
Estimate French basic retirement pension (retraite de base Assurance Vieillesse). Returns: {average_salary_best25, annual_pension, max_monthly_pension, prorata_pct}. See list_bundles for related 'finance-france' calculators.
calculate_retirement_savings_gap
Project retirement savings vs need and identify shortfall. Use for retirement planning. Inputs: current age, retirement age, current savings, monthly contribution, target income. Returns projected balance and gap. See list_bundles for related 'finance-universal' calculators.
calculate_reverb_predelay
Calculate optimal reverb pre-delay based on room size and musical tempo. See list_bundles for related 'musique' calculators.
calculate_ring_size
Find ring size in EU/US/UK/JP given finger circumference or diameter. Use for jewelry shopping. Inputs: circumference mm or diameter mm. Returns size in EU, US, UK, JP systems. See list_bundles for related 'textile-mode' calculators.
calculate_ring_size_convert
Convert ring sizes between EU, US, UK, and Japan systems. Use for international jewelry shopping. Inputs: size, from-system, to-system. Returns equivalent size. See list_bundles for related 'textile-mode' calculators.
calculate_roi
Compute Return on Investment as a percentage. Use to evaluate investments, marketing spend, or projects. Inputs: investment cost, return value. Returns ROI %, profit, and multiple. See list_bundles for related 'finance-universal' calculators.
calculate_roman_numeral
Convert between Roman numerals and decimal (1-3999). Returns: {roman_numeral, decimal}. See list_bundles for related 'conversions' calculators.
calculate_roof_area
Calculate roof surface area from building footprint and slope angle. Returns: {rafter_length_m, net_roof_area_m2, with_5pct_overhang_m2}. See list_bundles for related 'construction' calculators.
calculate_roof_truss
Calculate roof truss dimensions, rafter length and material quantities for a pitched roof. See list_bundles for related 'construction' calculators.
calculate_rule_of_72
Estimate years to double an investment using the Rule of 72. Returns: {doubling_years_rule72, doubling_years_precise, annual_rate_pct}. See list_bundles for related 'finance-universal' calculators.
calculate_rule_of_three
Solve rule of three (cross-multiplication): if a→b, then c→? Use for proportions, recipe scaling, or unit pricing. Inputs: a, b, c. Returns x. See list_bundles for related 'education' calculators.
calculate_running_pace
Calculate running pace (min/km) and speed (km/h) from distance and time. Returns: {pace_min_per_km, pace_formatted}. See list_bundles for related 'sport' calculators.
calculate_salary_comparison_ppp
Compare salaries across countries using PPP (FR=0.79, US=1.0, UK=0.81, DE=0.77, CH=1.36, BE=0.80). Returns: {ppp_from, ppp_to, equivalent, ratio}. See list_bundles for related 'vie-quotidienne' calculators.
calculate_salary_hourly_to_annual
Convert hourly wage to monthly and annual salary, gross or net. Use for job comparisons. Inputs: hourly rate, hours/week, weeks/year. Returns weekly, monthly, and annual figures. See list_bundles for related 'finance-universal' calculators.
calculate_sample_size
Compute required sample size for a survey to hit a target margin of error. Use for survey design and A/B testing. Inputs: population, confidence %, margin of error %. Returns minimum sample size. See list_bundles for related 'math' calculators.
calculate_savings_goal
Compute time and monthly contribution needed to reach a savings target. Use for goal-based personal finance. Inputs: target amount, current savings, monthly contribution, annual return %. Returns months to goal. See list_bundles for related 'finance-universal' calculators.
calculate_scholarship_comparison
Compare net tuition cost across multiple scholarships and aid packages. Use for college choice. Inputs: list of {tuition, aid} pairs. Returns ranked net costs and best option. See list_bundles for related 'education' calculators.
calculate_sci_is_vs_ir
Compare SCI taxation under IS (corporate tax) vs IR (income tax). Use for French real-estate investors choosing tax regime. Inputs: rental income, charges, owner tax bracket. Returns net result under each regime. See list_bundles for related 'immobilier' calculators.
calculate_seed_quantity
Calculate the number of seeds needed based on surface area, spacing and germination rate. See list_bundles for related 'jardinage' calculators.
calculate_senegalese_css
Calculate Senegalese social contributions (CSS/IPRES) for employee and employer. Returns: {gross_monthly_xof, employee, employer}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_senegalese_income_tax
Calculate Senegalese income tax (IRPP) using DGI progressive brackets in XOF. Returns: {annual_income_xof, income_tax_xof, effective_rate_pct, marginal_rate_pct, brackets}. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_senegalese_vat
Compute Senegalese VAT (TVA) — 18% standard rate. Use for invoicing in Senegal. Inputs: amount, mode (ht/ttc). Returns HT, TTC, tax amount. See list_bundles for related 'finance-afrique-quebec' calculators.
calculate_sequence
Calculate nth term and sum of arithmetic or geometric sequence. Returns: {common_difference, nth_term, sum_of_n}. See list_bundles for related 'math' calculators.
calculate_severance_pay
Calculate French severance pay for rupture conventionnelle or licenciement. Returns: {monthly_salary, years_first_10, years_above_10, gross_indemnite, note}. See list_bundles for related 'finance-france' calculators.
calculate_shipping_volumetric
Compute volumetric (dimensional) weight for shipping. Carriers bill the higher of actual and dim weight. Inputs: L×W×H cm, divisor (5000 air, 6000 ground). Returns dim weight kg. See list_bundles for related 'finance-universal' calculators.
calculate_shoe_size
Convert shoe size between EU, US, UK, and Japanese systems. Use for international shopping. Inputs: size, from-system, to-system, gender. Returns equivalent. See list_bundles for related 'conversions' calculators.
calculate_shoe_size_convert
Convert shoe size between EU, US (M/W) and UK systems. Returns: {converted_size, eu_size, original_size}. See list_bundles for related 'conversions' calculators.
calculate_simple_interest
Compute simple interest I=P·r·t. Use for short-term loans, basic savings accounts, and homework. Returns interest amount and final balance. See list_bundles for related 'finance-universal' calculators.
calculate_sleep_cycles
Estimate optimal bedtime or wake time based on 90-min sleep cycles. Use for sleep optimization. Inputs: target wake or bedtime. Returns 4-6 cycle recommendations. See list_bundles for related 'sante' calculators.
calculate_slope
Compute slope as percentage, angle in degrees, and ratio. Use for ramps, roofs, or terrain analysis. Inputs: rise, run. Returns slope% and angle°. See list_bundles for related 'construction' calculators.
calculate_smoking_savings
Compute money and health time saved by quitting smoking. Use for motivation and budgeting. Inputs: cigarettes/day, pack price. Returns daily/monthly/yearly savings and life-time recovered. See list_bundles for related 'sante' calculators.
calculate_soil_ph_amendment
Compute lime or sulfur amount to shift soil pH to a target. Use for gardening. Inputs: current pH, target pH, area m². Returns amendment type and kg/m². See list_bundles for related 'astronomie-nature' calculators.
calculate_solar_panel_output
Estimate solar panel daily and yearly energy output by location and system size. Use for solar installation sizing. Inputs: kW capacity, latitude, panel orientation, shading %. Returns kWh/day and kWh/year. See list_bundles for related 'energie' calculators.
calculate_solar_roi
Compute solar panel return on investment over their lifetime. Use for energy audit. Inputs: install cost, kW capacity, location production, kWh price. Returns ROI years and lifetime savings. See list_bundles for related 'energie' calculators.
calculate_solution_dilution
Compute lab solution dilution C1·V1=C2·V2. Use for stock-to-working solution prep. Inputs: stock concentration, target concentration, target volume. Returns stock volume and diluent volume. See list_bundles for related 'science' calculators.
calculate_speed_distance_time
Solve speed/distance/time — provide any 2 of 3 values to compute the missing one. Returns: {error}. See list_bundles for related 'sport' calculators.
calculate_speed_of_sound
Compute speed of sound in air at a given temperature. Use for physics or audio engineering. Formula: c=331.3+0.606·T_C. Inputs: temperature °C. Returns speed in m/s. See list_bundles for related 'science' calculators.
calculate_sphere
Compute sphere volume V=(4/3)πr³ and surface area A=4πr². Use for ball, tank, or astronomy problems. Inputs: radius. Returns volume and area. See list_bundles for related 'math' calculators.
calculate_spring_constant
Compute spring constant k from Hooke's law F=k·x. Use for physics or mechanical design. Inputs: force N, displacement m. Returns spring constant N/m. See list_bundles for related 'science' calculators.
calculate_staircase
Calculate staircase dimensions using Blondel formula. Returns: {step_height_cm, giron_cm, blondel, blondel_ok}. See list_bundles for related 'construction' calculators.
calculate_staking_rewards
Calculate staking rewards with optional compounding for a given APY and duration. Returns: {initial_amount}. See list_bundles for related 'crypto' calculators.
calculate_stamp_duty_uk
Compute UK Stamp Duty Land Tax (SDLT). Use for UK home buyers. Inputs: property price, first-time-buyer flag, second-home flag. Returns SDLT due and effective rate. See list_bundles for related 'finance-uk' calculators.
calculate_star_magnitude_distance
Calculate star distance from apparent and absolute magnitude. See list_bundles for related 'astronomie-nature' calculators.
calculate_statistics
Calculate descriptive statistics: mean, median, mode, std dev, quartiles. Returns: {count, std_deviation, min, max, range, iqr}. See list_bundles for related 'education' calculators.
calculate_string_tension
Calculate guitar or bass string tension in pounds, kilograms and Newtons. See list_bundles for related 'musique' calculators.
calculate_student_loan_repayment
Compute student loan repayment schedule and total interest. Use for graduates planning repayment. Inputs: loan amount, interest rate %, term years. Returns monthly payment, total paid, total interest. See list_bundles for related 'education' calculators.
calculate_study_schedule
Generate a study schedule based on exam date and topics. Returns: {total_hours_needed, daily_hours_needed, feasible}. See list_bundles for related 'education' calculators.
calculate_sun_exposure
Calculate safe sun exposure time based on UV index and Fitzpatrick skin type. Returns: {skin_description, safe_exposure_minutes, with_spf30_minutes, uv_risk_level, recommendations}. See list_bundles for related 'voyage' calculators.
calculate_sunrise_approx
Estimate sunrise/sunset times for a latitude on a given day of year. Use for astronomy or outdoor planning. Inputs: latitude, day of year. Returns sunrise/sunset hours, daylight duration. See list_bundles for related 'astronomie-nature' calculators.
calculate_sunrise_sunset
Approximate sunrise and sunset times based on latitude and day of year. Returns: {sunrise_solar_time, sunset_solar_time, day_length_hours}. See list_bundles for related 'astronomie-nature' calculators.
calculate_sunscreen_reapply
Compute when to reapply sunscreen based on SPF, activity, and water exposure. Use for sun safety. Inputs: SPF, skin type, activity (sweat/swim), UV index. Returns next reapply time. See list_bundles for related 'sante' calculators.
calculate_surface_carrez
Calculate Carrez law surface area (French legal measurement). Returns: {carrez_surface_m2, total_surface_m2, excluded_m2, included_rooms, excluded_rooms, note}. See list_bundles for related 'immobilier' calculators.
calculate_swimming_pace
Calculate swimming pace per 100m and SWOLF efficiency estimate. Returns: {pace_per_100m_min, pace_formatted, swolf_estimate}. See list_bundles for related 'sport' calculators.
calculate_swiss_income_tax
Calculate Swiss income tax — federal + estimated cantonal tax. Returns: {income, federal_tax, federal_marginal_rate_pct, cantonal_tax_estimate, cantonal_rate_pct, effective_rate_pct, ...}. See list_bundles for related 'finance-suisse' calculators.
calculate_swiss_lpp
Calculate Swiss occupational pension (LPP / 2e pilier) contributions by age bracket. Returns: {eligible, note}. See list_bundles for related 'finance-suisse' calculators.
calculate_swiss_pillar3a
Calculate Swiss pillar 3a tax savings (3e pilier lie). Returns: {annual_contribution, net_cost_after_saving, max_employee_2026, max_self_employed_2026}. See list_bundles for related 'finance-suisse' calculators.
calculate_swiss_salary
Convert Swiss gross monthly salary to estimated net salary. Returns: {gross_monthly, avs_ai_apg_5_3pct, ac_chomage_1_1pct, lpp_2e_pilier_10pct, lamal_health_fixed, net_monthly, ...}. See list_bundles for related 'finance-suisse' calculators.
calculate_swiss_vat
Compute Swiss VAT (TVA/MWST) — convert between net (HT) and gross (TTC). Use for invoicing or expense reimbursements in Switzerland. Inputs: amount, rate (8.1, 3.8, 2.6, 0). Returns HT, TTC, and tax amount. See list_bundles for related 'finance-suisse' calculators.
calculate_swiss_wealth_tax
Calculate Swiss wealth tax (impot sur la fortune) by canton. Returns: {net_wealth, tax_free_threshold, taxable_wealth, wealth_tax_rate_pct, annual_wealth_tax, note}. See list_bundles for related 'finance-suisse' calculators.
calculate_tdee
Calculate Total Daily Energy Expenditure from BMR and activity level. Returns: {tdee_kcal}. See list_bundles for related 'sante' calculators.
calculate_telescope_magnification
Compute telescope magnification, exit pupil, and field of view. Use for astronomy hobbyists. Inputs: telescope focal length, eyepiece focal length, eyepiece field of view. Returns magnification and exit pupil. See list_bundles for related 'astronomie-nature' calculators.
calculate_tile_grout
Compute grout quantity for a tiling job. Use for renovation budget. Inputs: surface m², tile size, joint width. Returns grout kg needed. See list_bundles for related 'construction' calculators.
calculate_tile_quantity
Compute tiles needed including a waste margin (default 10%). Use for floor or wall tiling. Inputs: surface m², tile size, waste %. Returns tile count and surface ordered. See list_bundles for related 'construction' calculators.
calculate_time_difference
Compute the difference between two times or dates in seconds, minutes, hours, days. Use for project tracking, age, or scheduling. Inputs: start datetime, end datetime. Returns delta in multiple units. See list_bundles for related 'voyage' calculators.
calculate_time_signature_beats
Calculate total beats and duration for a musical passage in bars. Returns: {time_signature}. See list_bundles for related 'musique' calculators.
calculate_time_zone_difference
Compute the time difference (hours) between two timezones. Use for international meetings. Inputs: timezone A, timezone B. Returns delta hours and current local times. See list_bundles for related 'voyage' calculators.
calculate_timezone_convert
Convert a time between two UTC offsets accounting for date rollover. Use for international meetings. Inputs: time, from-utc, to-utc. Returns local time and date offset. See list_bundles for related 'conversions' calculators.
calculate_timezone_offset
Compute current UTC offset for a timezone, accounting for DST. Use for scheduling and date math. Inputs: timezone (IANA name). Returns UTC offset and DST status. See list_bundles for related 'temps-rh' calculators.
calculate_tip
Compute restaurant tip and per-person split. Use for shared meals. Inputs: bill, tip %, people count. Returns tip, total, per-person share. See list_bundles for related 'vie-quotidienne' calculators.
calculate_tip_split
Calculate tip and per-person amount for a restaurant bill. See list_bundles for related 'vie-quotidienne' calculators.
calculate_tip_worldwide
Compute restaurant tip following local custom (US 18-22%, FR included, JP no tip, etc.). Use when traveling. Inputs: bill, country. Returns recommended tip and total. See list_bundles for related 'vie-quotidienne' calculators.
calculate_torus
Compute torus volume V=2π²Rr² and surface area. Use for ring-shaped objects (donuts, inner tubes). Inputs: major radius R, minor radius r. Returns volume and area. See list_bundles for related 'math' calculators.
calculate_training_zones_running
Calculate 6 running training zones as speed ranges based on VMA. Returns: {vma_kmh}. See list_bundles for related 'sport' calculators.
calculate_travel_budget
Estimate total trip budget by category (transport, accommodation, food, activities). Use for trip planning. Inputs: destination, days, traveler count, comfort level. Returns total and per-day breakdown. See list_bundles for related 'voyage' calculators.
calculate_travel_insurance
Calculate estimated travel insurance cost based on destination, duration, age and activities. Returns: {base_per_day_eur, activity_factor, estimated_premium_eur, coverage_tips}. See list_bundles for related 'voyage' calculators.
calculate_travel_insurance_estimate
Estimate travel insurance cost based on trip cost, age, duration, destination. Use for trip planning. Inputs: trip cost, traveler age, days, region. Returns premium estimate. See list_bundles for related 'voyage' calculators.
calculate_triangle_heron
Compute triangle area from three side lengths using Heron's formula. Use when angles aren't known. Inputs: sides a, b, c. Returns area, perimeter, type (equilateral/isoceles/scalene). See list_bundles for related 'math' calculators.
calculate_trigonometry
Compute sin, cos, tan and inverse functions in degrees or radians. Use for geometry, physics, navigation. Inputs: function, value, unit. Returns result and reciprocal. See list_bundles for related 'math' calculators.
calculate_uk_council_tax
Compute UK Council Tax based on property band and local authority rate. Use for UK residents and home buyers. Inputs: band (A-H), local authority. Returns annual and monthly council tax. See list_bundles for related 'finance-uk' calculators.
calculate_uk_income_tax
Calculate UK income tax for 2025/26 using HMRC progressive brackets with personal allowance taper. Returns: {gross_income, personal_allowance, taxable_income, income_tax, effective_rate_pct, marginal_rate_pct}. See list_bundles for related 'finance-uk' calculators.
calculate_uk_ni_contributions
Calculate UK National Insurance contributions (Class 1 employee) for 2025/26. Returns: {annual_salary, ni_annual, ni_monthly, effective_rate_pct}. See list_bundles for related 'finance-uk' calculators.
calculate_uk_student_loan
Calculate UK student loan repayments based on plan type and salary. Returns: {annual_salary, repayment_rate_pct, annual_repayment, monthly_repayment}. See list_bundles for related 'finance-uk' calculators.
calculate_uk_vat
Calculate UK VAT — convert between net (ex-VAT) and gross (inc-VAT) amounts. Returns: {amount_net, amount_gross, vat_amount, vat_rate_pct}. See list_bundles for related 'finance-uk' calculators.
calculate_unemployment_benefit
Estimate French unemployment benefit (ARE — Aide au Retour a l'Emploi). Returns: {daily_ref_salary, daily_are, monthly_are_estimate, min_daily, max_daily_75pct_sjr}. See list_bundles for related 'finance-france' calculators.
calculate_unit_price
Compare unit prices across packages to find the best deal. Use for shopping. Inputs: list of {price, quantity, unit}. Returns price per unit and best buy. See list_bundles for related 'education' calculators.
calculate_us_401k
Calculate US 401(k) contribution, employer match, and total retirement savings. Returns: {annual_salary, employee_contribution, employer_match, total_annual_contribution, catch_up_eligible, max_employee_limit}. See list_bundles for related 'finance-us' calculators.
calculate_us_capital_gains
Calculate US capital gains tax — short-term (ordinary rates) or long-term (preferential rates). Returns: {tax, gain_type}. See list_bundles for related 'finance-us' calculators.
calculate_us_child_tax_credit
Calculate US Child Tax Credit for 2026 with phase-out based on AGI. Returns: {agi, base_credit, credit_reduction, final_credit}. See list_bundles for related 'finance-us' calculators.
calculate_us_federal_tax
Calculate US federal income tax for 2026 using progressive brackets with standard deduction. Returns: {gross_income, standard_deduction, taxable_income, federal_tax, effective_rate_pct, marginal_rate_pct, ...}. See list_bundles for related 'finance-us' calculators.
calculate_us_fica
Calculate US FICA taxes (Social Security + Medicare) employee share for 2026. Returns: {gross_annual, social_security_taxable, social_security_tax, medicare_base_tax, medicare_additional_tax, medicare_total, ...}. See list_bundles for related 'finance-us' calculators.
calculate_us_mortgage
Calculate US mortgage with PMI, property tax, and insurance estimates. Returns: {home_price, down_payment, loan_amount, monthly_pi, monthly_pmi, monthly_property_tax, ...}. See list_bundles for related 'finance-us' calculators.
calculate_us_paycheck
Estimate US bi-weekly net paycheck after federal/state withholding and FICA. Returns: {annual_salary, fica_biweekly, net_biweekly, net_annual_estimate}. See list_bundles for related 'finance-us' calculators.
calculate_us_property_tax
Estimate annual US property tax by state using effective tax rates. Returns: {home_value, effective_rate_pct, annual_property_tax, monthly_property_tax}. See list_bundles for related 'finance-us' calculators.
calculate_us_state_tax
Compute US state income tax for a chosen state. Use for paycheck planning across states. Inputs: state, gross income, filing status. Returns state tax due and effective rate. See list_bundles for related 'finance-us' calculators.
calculate_us_student_loan
Calculate US student loan repayment under standard, graduated, or income-driven plans. Returns: {loan_balance}. See list_bundles for related 'finance-us' calculators.
calculate_vacation_days_fr
Compute French paid vacation days earned (congés payés). Use for HR planning. Inputs: months worked, contract type. Returns days earned (2.5/month rule) and equivalent in working days. See list_bundles for related 'finance-france' calculators.
calculate_vacation_days_optimal
Compute optimal vacation usage by chaining bridge days with public holidays. Use for HR or worker planning. Inputs: vacation days, country, year. Returns best plan with day count. See list_bundles for related 'voyage' calculators.
calculate_vat_generic
Calculate VAT/GST/sales tax for any country with custom rate. Returns: {amount_before_tax, amount_after_tax, tax_amount, tax_rate}. See list_bundles for related 'finance-universal' calculators.
calculate_vat_reverse
Reverse-VAT: extract the VAT and net price from a TTC amount. Use to back out tax from a gross invoice. Inputs: TTC amount, VAT rate %. Returns HT, VAT amount. See list_bundles for related 'finance-france' calculators.
calculate_velo_development
Calculate bicycle development in meters per pedal revolution. Returns: {gear_ratio, development_m, speed_at_90rpm_kmh}. See list_bundles for related 'sport' calculators.
calculate_vma
Compute VMA (Maximal Aerobic Speed) from a fitness test result. Use for runners building training plans. Inputs: test type (Cooper 12-min, Luc Léger), result. Returns VMA km/h and zones. See list_bundles for related 'sport' calculators.
calculate_vo2max
Estimate VO2max from VMA (maximal aerobic speed). Use for runners assessing cardio fitness. Formula: VO2max ≈ VMA × 3.5. Inputs: VMA in km/h. Returns VO2max in mL/kg/min and fitness category. See list_bundles for related 'sport' calculators.
calculate_voltage_adapter
Determine voltage adapter and plug type needed for a destination country. Use for international travel with electronics. Inputs: home country, destination, device wattage. Returns adapter type, voltage, plug shape. See list_bundles for related 'voyage' calculators.
calculate_volume
Compute volume for common 3D shapes (cube, cylinder, sphere, cone, prism). Use for geometry, packaging, or construction. Inputs: shape + dimensions. Returns volume in input-units cubed. See list_bundles for related 'math' calculators.
calculate_waist_hip_ratio
Calculate waist-to-hip ratio and cardiovascular risk level. Returns: {risk_threshold, cardiovascular_risk}. See list_bundles for related 'sante' calculators.
calculate_wallpaper
Compute wallpaper rolls needed for a room with pattern repeat factor. Use for renovation budget. Inputs: room dimensions, roll size, pattern repeat. Returns roll count. See list_bundles for related 'construction' calculators.
calculate_wallpaper_rolls
Compute wallpaper rolls for a room including pattern repeat and waste. Use for renovation. Inputs: walls m², roll dimensions, pattern repeat. Returns roll count and length needed. See list_bundles for related 'construction' calculators.
calculate_water_bill
Compute water bill from cubic meters consumed and tariff bands. Use for household budget. Inputs: m³ consumed, fixed fee, variable rate. Returns total bill. See list_bundles for related 'vie-quotidienne' calculators.
calculate_water_hardness
Calculate water hardness in French degrees from calcium and magnesium concentrations. Returns: {thresholds}. See list_bundles for related 'cuisine' calculators.
calculate_water_heater_size
Calculate recommended water heater tank size for a household. See list_bundles for related 'plomberie' calculators.
calculate_water_intake
Compute recommended daily water intake in liters by weight, activity, climate. Use for hydration planning. Inputs: weight kg, activity level, climate (temperate/hot). Returns L/day and glass count. See list_bundles for related 'sante' calculators.
calculate_water_pressure_loss
Calculate water pressure loss in a pipe circuit including friction and elevation. Returns: {equiv_length_m}. See list_bundles for related 'plomberie' calculators.
calculate_wave_properties
Compute wave frequency, wavelength, or period from any two. Formula: c=λ·f. Use for physics or acoustics. Inputs: any 2 of (frequency Hz, wavelength m, speed m/s). Returns missing values. See list_bundles for related 'science' calculators.
calculate_wavelength_frequency
Solve c=λ·f for EM waves. Provide wavelength or frequency. Also returns photon energy E=hf. See list_bundles for related 'science' calculators.
calculate_wind_chill
Calculate the perceived wind chill temperature (Environment Canada formula). Returns: {feels_colder_by_degrees}. See list_bundles for related 'astronomie-nature' calculators.
calculate_wire_gauge_convert
Convert AWG wire gauge to diameter (mm) and resistance (ohms/m). Use for electrical projects. Inputs: AWG number. Returns diameter, area, resistance, max current. See list_bundles for related 'conversions' calculators.
calculate_working_days
Count working days Mon-Fri between two dates with optional French public holiday exclusion. Returns: {working_days, public_holidays_excluded}. See list_bundles for related 'temps-rh' calculators.
calculate_z_score
Compute z-score (standardized score) and percentile from a value, mean, and standard deviation. Use for statistics and outlier detection. Returns z, percentile, p-value. See list_bundles for related 'math' calculators.
convert
convert_angle
Convert angle between degrees, radians, gradians, turns, arcminutes, arcseconds. Use for math, navigation, surveying. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_area
Convert area between m², km², ha, are, acre, ft², yd², cm². Use for real estate, agriculture, or construction. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_cooking
Convert cooking measurements between ml, L, g, kg, cup, tbsp, tsp, fl_oz, oz. Use for recipe scaling and translating. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_data_storage
Convert between digital storage units (binary and decimal). Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_distance
Convert distance between metric (m, km, cm, mm) and imperial (in, ft, yd, mi) plus nautical miles. Use for travel, sport, or engineering. Inputs: value, from, to. Returns: {input, factor}. See list_bundles for related 'conversions' calculators.
convert_energy
Convert energy between J, kJ, cal, kcal, kWh, BTU, eV, ft-lb. Use for nutrition, electricity, science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_fuel_consumption
Convert fuel consumption between L/100km, mpg-US, mpg-UK, km/L. Use for car comparison across regions. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_pressure
Convert pressure between Pa, kPa, MPa, bar, psi, atm, mmHg, mbar, torr. Use for engineering, tires, weather. Inputs: value, from-unit, to-unit. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_shoe_size
Convert shoe sizes between EU, US (men/women), and UK systems. Use for online shopping. Inputs: size, from, to, gender. Returns converted size. See list_bundles for related 'conversions' calculators.
convert_speed
Convert speed between km/h, mph, m/s, knots, ft/s. Use for travel, sport, or maritime/aviation. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_temperature
Convert temperature between Celsius, Fahrenheit, and Kelvin. Use for cooking, weather, science. Inputs: value, from, to. Returns converted temperature. See list_bundles for related 'conversions' calculators.
convert_time
Convert time between seconds, minutes, hours, days, weeks, months, years. Use for project planning or unit homogenization. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_volume
Convert volume between L, mL, cL, fl_oz, cup, tbsp, tsp, gal_us, gal_uk. Use for cooking and science. Inputs: value, from, to. Returns: {input}. See list_bundles for related 'conversions' calculators.
convert_weight
Convert weight/mass between kg, g, mg, lb, oz, st, tonne. Use for cooking, shipping, or fitness. Inputs: value, from, to. Returns converted mass. See list_bundles for related 'conversions' calculators.
bundle
get_bundle_tools
Get the list of tools in a specific bundle. Returns tool names and descriptions for the requested domain bundle.
bundles
list_bundles
List all available tool bundles (grouped by domain). Use this to discover which tools are available for a specific topic instead of browsing all 500+ tools.
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://macalculatriceenligne.com/api/mcp | streamable-http | answering | 365 ms | 3 min ago |
MaCalculatriceEnLigne — questions
Answers built from our own checks of this server.
What can MaCalculatriceEnLigne do?
It exposes 446 tools, read directly from the server on our last check. Among them: calculate_1rm_table, calculate_add_hours, calculate_age, calculate_age_in_units, calculate_alcohol_units, calculate_altitude_sickness and 440 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README.
How MCP servers expose tools in the first place →
What is MaCalculatriceEnLigne mostly used for?
Its tools cluster around calculate and convert. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is MaCalculatriceEnLigne working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 335 ms. The bar chart above shows every period we have measured.
How do I connect MaCalculatriceEnLigne?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does MaCalculatriceEnLigne need an API key?
No. MaCalculatriceEnLigne completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 446 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is MaCalculatriceEnLigne?
It answers our handshake in 335 ms on average, which is faster than 42% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is MaCalculatriceEnLigne open source?
Yes — it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.