Browse all 206 free calculators organized by category
Calculez votre paiement mensuel d'hypothèque, l'intérêt total et le calendrier d'amortissement
Calculer how much you need to save for an emergency fund basé sur monthly expenses.
See how much votre daily small habits (like coffee) cost you over time with compound interest.
Financial Independence, Retire Early. Calculez votre 'Freedom Number' basé sur the 25x rule.
Calculez votre profit or loss from a cryptocurrency trade including fees.
Visualize the power of consistent investing vs lump sum.
Calculer compound interest on investments et savings
Calculer loan payments, intérêt total, et calendrier d'amortissement for personal loans
Calculer monthly auto loan payments et intérêt total for car financing
Calculer future value of investments with regular contributions
Calculer simple interest on loans et investments
Calculer Return on Investment (ROI) percentage
Calculer markup percentage et selling price from cost
Calculer profit margin percentage from cost et selling price
Calculer sales tax amount et total price including tax
Calculer the price per unit from total price et quantity
Calculer the present value of a future amount
Calculer the future value of a present amount
Calculer how long it takes to recover an investment
Calculez votre debt-to-income ratio to assess financial health
Calculer Annual Percentage Rate (APR) for loans
Calculer how long it will take to reach votre savings goal
Calculer how long it will take to pay off votre credit card debt
Calculer loan-to-value (LTV) ratio for mortgages
Calculer how much you need to save for retirement
Calculer tax amount et after-tax income
Calculez votre salaire net à partir du salaire brut ou votre salaire brut à partir du salaire net. Inclut les calculs d'impôts, de sécurité sociale, d'assurance chômage et de timbre fiscal pour 2026.
Convert between different currencies using exchange rates
Calculer annuity payments, total payment, et interest
Calculer the break-even point for votre business
Calculer bond yield to maturity et current yield
Calculer stock return including price change et dividends
Compare two loans to find the better option
Calculer Net Present Value (NPV) of an investment
Calculer Internal Rate of Return (IRR) of an investment
Generate a detailed calendrier d'amortissement for votre loan
Calculer the Effective Annual Rate (EAR) from nominal interest rate et compounding frequency
Calculer how long it takes for an investment to double using the Rule of 72
Calculer capital gains tax on investment sales
Calculer the future value of money adjusted for inflation
Calculer profit margin et gross margin from revenue et cost
Compare the costs of renting versus buying a home over time.
Estimate votre tax deduction using the simplified method for home offices.
Estimate how long it takes for solar panels to pay for themselves.
Calculer the opportunity cost of choosing one investment over another
Calculer car value depreciation over time
Calculez votre Indice de Masse Corporelle (IMC) pour déterminer si vous êtes à un poids sain. Inclut IMC Prime, Indice Pondéral et plage de poids saine.
Calculez votre Basal Metabolic Rate (BMR) pour déterminer how many calories votre body burns at rest
Calculez votre daily calorie needs basé sur votre BMR et niveau d'activité
Estimate votre body fat percentage using various methods
Calculez votre ideal body weight basé sur height et gender
Calculer body surface area (BSA) using Du Bois formula
Calculer waist-to-hip ratio to assess health risks
Calculer Total Daily Energy Expenditure (TDEE) basé sur BMR et niveau d'activité
Calculer total body water using Watson formula
Calculer daily calorie deficit needed to reach votre target weight
Calculer protein, carbs, et fat grams basé sur daily calories et percentages
Calculez votre target heart rate zones for different training intensities
Calculer daily protein requirements basé sur weight, niveau d'activité, et goals
Calculer daily water intake requirements basé sur weight et niveau d'activité
Calculer lean body mass et fat mass from total weight et body fat percentage
Estimate votre ovulation date et fertile window basé sur votre menstrual cycle
Calculez votre estimated pregnancy due date basé sur votre last menstrual period
Estimate votre blood alcohol content basé sur drinks consumed, time elapsed, et body weight
Estimate votre safe daily limit of caffeine basé sur body weight.
Calculer percentages, percentage change, et percentage of a number
Calculer the percentage change between two values
Calculer the square root of any number
Calculer base raised to the power of exponent
Calculer the average (mean) of a set of numbers
Calculer the factorial of a number (n!)
Calculer the number of permutations P(n, r)
Calculer the number of combinations C(n, r)
Calculer the Greatest Common Divisor (GCD) of two numbers
Calculer the Least Common Multiple (LCM) of two numbers
Calculer mean, variance, et stetard deviation of a set of numbers
Calculer what percentage of a number equals another number
Calculer percentage increase or decrease between two values
Calculer et simplify ratios between two numbers
Calculer the area, circumference, et diameter of a circle
Calculer the area, perimeter, et diagonal of a rectangle
Calculer the area et perimeter of a triangle using Heron's formula
Calculer the missing side of a right triangle using Pythagorean theorem
Solve quadratic equations of the form ax² + bx + c = 0
Calculer the percentage difference between two values
Calculer percentage error between actual et theoretical values
Calculer the volume et surface area of a cube
Calculer the volume et surface area of a cylinder
Calculer the volume et surface area of a sphere
Calculer the volume et surface area of a cone
Calculer the area et perimeter of a trapezoid
Calculer the area et perimeter of a parallelogram
Calculer the area et perimeter of a rhombus
Calculer the area et perimeter of a regular hexagon
Calculer the area et perimeter of a regular octagon
Calculer the determinant of a 2x2 matrix
Multiply two 2x2 matrices
Calculer the derivative of a polynomial function
Calculer logarithm with any base, natural log, et log base 10
Calculer sine, cosine, et tangent of an angle
Calculer the median of a set of numbers
Calculer the mode (most frequent value) of a set of numbers
Calculer the integral (antiderivative) of a polynomial function
Calculer the range (difference between max et min) of a set of numbers
Calculer quartiles (Q1, Q2, Q3) et interquartile range (IQR)
Calculer variance, stetard deviation, et mean of a set of numbers
Calculer the Z-score (stetard score) of a value
Calculer the nth root of a number
Convert numbers to scientific notation format
Calculer the slope of a line from two points
Calculer the distance between two points in 2D space
Calculer the distance between two points in 3D space
Perform operations on complex numbers (add, subtract, multiply, divide)
Calculer the dot product of two 3D vectors
Calculer the cross product of two 3D vectors
Calculer probability using normal distribution
Calculer the probability of winning a lottery.
Calculer confidence intervals for statistical analysis
Calculer posterior probability using Bayes' theorem
Check if a number is prime et find its factors
Calculer et identify significant figures in a number
Generate secure, retom passwords with customizable length et character options
Encode text to Base64 format for secure data transmission
Decode Base64 encoded text back to original format
Format et beautify messy JSON code with proper indentation
Calculer aspect ratio from width et height dimensions (16:9, 4:3, etc.)
Convert hexadecimal color codes to RGB values
Convert RGB color values to hexadecimal color code
Calculer engagement rate for Instagram, TikTok, or YouTube.
Estimate video file size basé sur resolution, duration, et fps.
Estimate potential earnings from the TikTok Creator Fund.
Check if votre title et description length are optimal for Google.
Check WCAG compliance for text contrast between foreground et background colors
Calculer how long it will take to download a file basé sur file size et internet speed
Convert pixel values to REM units for responsive web design
Calculer password strength et entropy in bits
Calculez le coût d'utilisation de modèles d'IA comme GPT-4, Claude et Gemini basé sur les tokens d'entrée et de sortie. Comparez les prix entre différents fournisseurs d'IA.
Calculez les dimensions en pixels, la perte de qualité et les changements de taille de fichier lors de l'agrandissement d'images. Comparez différentes méthodes d'agrandissement, y compris les solutions alimentées par l'IA.
Calculer sales commission, deductions, et net profit for e-commerce et marketplace sellers
Calculer VAT (Value Added Tax / KDV) - add or remove VAT from prices
Calculer how inflation affects the purchasing power of votre money over time
Calculez votre ideal hourly et daily rate basé sur expenses, profit goals, et working hours
Calculer the cost of acquiring a new customer basé sur marketing et sales spend
Calculez le retour sur investissement (ROI) et le retour sur les dépenses publicitaires (ROAS) pour les campagnes publicitaires sur les réseaux sociaux sur Meta, Google, TikTok et d'autres plateformes.
Calculez le taux de désabonnement des clients, le taux de rétention et les projections annuelles pour les entreprises basées sur l'abonnement. Suivez les métriques de perte et de rétention des clients.
Calculez votre Grade Point Average (GPA) from votre grades et credit hours
Calculer the weighted average of a set of values with their corresponding weights
Convert numbers between Binary, Octal, Decimal, et Hexadecimal number systems
Convert numbers to et from scientific notation format
Calculez votre fasting et eating windows basé sur popular intermittent fasting protocols
Calculer the best bedtime basé sur sleep cycles to wake up refreshed
Convert votre pet's age to human years for dogs et cats
Calculer the fuel cost for votre trip basé sur distance, fuel efficiency, et gas price
Convert between common cooking measurements like cups, tablespoons, milliliters, et more
Calculez votre typing or reading speed in words per minute
Count sentences, words, characters, et paragraphs in votre text
Calculer the required BTU for votre Air Conditioner basé sur room size.
Estimate how many rolls of wallpaper you need for a room.
Estimate the CO2 emissions for votre flight.
Calculer the time difference between two offset zones.
Convert luggage weight between Kilograms (kg) et Pounds (lbs).
Convert between L/100km et MPG (US).
Estimate votre life expectancy basé sur lifestyle factors. For entertainment only.
Calculer how long it takes to binge-watch a series.
Estimate watering frequency basé sur plant type et conditions.
Calculer water collection potential from votre roof.
Calculer how many Pomodoro cycles you need to complete a task
Calculer productivity loss from context switching et multitasking
Calculer how long it takes to read a text basé sur word count
Calculer daily food requirements for votre dog basé sur weight, age, et niveau d'activité
Calculer daily water intake requirements for votre cat
Calculer aquarium volume et required heater wattage
Calculer baker's percentages for bread recipes
Calculer how much water to add to reduce alcohol content
Calculer pattern repeats et remaining rows for knitting et crochet projects
Calculer tip amount et total bill including tip
Calculez votre exact age in years, months, et days
Calculer the difference between two dates in days, weeks, months, et years
Calculer discount amount et final price after discount
Convert between Celsius, Fahrenheit, et Kelvin
Convert between different length units (meters, kilometers, inches, feet, etc.)
Convert between different weight units (kilograms, pounds, ounces, etc.)
Calculer the number of days, weeks, months, et years between two dates
Add or subtract days from a date
Convert between different volume units (liters, gallons, cups, etc.)
Convert between different area units (square meters, acres, hectares, etc.)
Convert between different speed units (km/h, mph, m/s, knots)
Add or subtract time (hours, minutes, seconds)
Generate retom numbers within a specified range
Convert numbers to words in English
Convert between different time units (seconds, minutes, hours, days, weeks, months, years)
Convert between different energy units (joules, calories, kilowatt-hours, BTU, etc.)
Convert between different power units (watts, kilowatts, horsepower, BTU/hour)
Convert between different pressure units (pascal, bar, psi, atm, torr)
Calculer the number of days until a specific date
Calculer the week number of the year for a given date
Calculer how many days have passed since a specific date
Convert numbers to Roman numerals et vice versa
Convert numbers between different number bases (binary, octal, decimal, hexadecimal)
Calculer electric vehicle charging time basé sur battery capacity et charging power
Compare tire sizes et Calculer speedometer error
Convert between horsepower et torque
Calculer the wind chill temperature basé sur air temperature et wind speed
Calculer the heat index (feels-like temperature) basé sur temperature et humidity
Calculer the dew point temperature basé sur air temperature et humidity
Estimate light pollution et star visibility using the Bortle Scale