All Calculators

Calculate percentages, find what percent one number is of another, or determine a percentage of a given value.

Calculate your exact age in years, months, and days from your birth date to today.

Calculate your Body Mass Index (BMI) to assess if your weight is in a healthy range for your height.

Calculate simple interest on loans, investments, and savings with principal, rate, and time.

Calculate compound interest with customizable compounding frequency for investments and loans.

Calculate monthly loan payments, total interest, and amortization schedule for any loan type.

Calculate Equated Monthly Installments (EMI) for personal loans, car loans, and home loans.

Estimate mortgage payments, affordability, and total interest for home loans.

Calculate returns on Systematic Investment Plans (SIP) for mutual funds and regular investments.

Calculate Goods and Services Tax (GST) by adding or removing tax from amounts.

Calculate discounted prices, savings amounts, and final costs after percentage discounts.

Calculate profit margins, markups, and profitability ratios for businesses and products.

Calculate sales tax on purchases and find total amounts including tax. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Convert between major world currencies using approximate reference exchange rates.

Add, subtract, multiply, and divide fractions with automatic simplification.

Advanced calculator with trigonometric, logarithmic, and scientific functions.

Simple and easy-to-use calculator for everyday arithmetic operations. Get a clear result with the inputs shown on the page.

Calculate mean, median, and mode for any set of numbers. Get a clear result with the inputs shown on the page.

Simplify ratios and solve ratio problems for cooking, mixing, and scaling.

Solve proportion problems and find missing values in proportional relationships.

Calculate percentage increase or decrease between two values. Get a clear result with the inputs shown on the page.

Add or subtract days, weeks, or months from any date to find future or past dates.

Add and subtract hours and minutes to calculate total time durations. Enter the relevant dates or times to get a clear, practical result.

Calculate the exact age difference between two people or dates. Enter the relevant dates or times to get a clear, practical result.

Calculate the exact number of days, weeks, and months between two dates. Enter the relevant dates or times to get a clear, practical result.

Estimate daily calorie needs based on age, weight, height, gender, and activity level.

Estimate body fat percentage using the U.S. Navy method with tape measurements.

Calculate ideal body weight ranges based on height and gender using the Devine formula.

Calculate running and walking pace per kilometer or mile, plus speed in km/h or mph.

Calculate speed, distance, or time when any two values are known. Choose the units you need and get a quick, readable conversion.

Convert between various units of measurement including length, weight, area, volume, and data storage.

Convert between meters, kilometers, miles, feet, inches, and other length units.

Convert between kilograms, grams, pounds, ounces, stones, and tons. Choose the units you need and get a quick, readable conversion.

Convert between Celsius, Fahrenheit, and Kelvin temperature scales. Choose the units you need and get a quick, readable conversion.

Convert between square meters, square feet, acres, hectares, and other area units.

Convert between liters, milliliters, gallons, cups, fluid ounces, and cubic meters.

Convert between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes.

Convert times between different time zones around the world. Choose the units you need and get a quick, readable conversion.

Calculate compound annual growth rate between an initial value and a final value.

Calculate return on investment as a percentage and profit or loss. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Calculate net present value from an initial investment and future cash flows.

Estimate the internal rate of return for a series of cash flows. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Calculate what a current lump sum will grow to at a chosen rate and period.

Calculate the current value of a future amount discounted at a chosen rate.

Calculate the future value of regular periodic deposits at a fixed interest rate.

Estimate retirement savings from current savings, regular contributions, return, and time.

Estimate the future value of a retirement account with contributions and employer matching.

Project investment growth using an initial amount, regular contributions, return, and time.

Project savings growth from an existing balance and recurring deposits. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Calculate the monthly amount needed to reach a savings target. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Estimate a loan amount from income, existing debt, interest rate, and term using a 36% debt-to-income guideline.

Calculate the percentage of gross monthly income committed to monthly debt payments.

Estimate payoff time and total interest for a fixed-rate debt with regular payments.

Estimate how long it will take to pay off credit card debt at a fixed APR and payment.

Calculate loan payment, total interest, and total repayment for an amortizing loan.

Calculate the down payment amount and remaining loan amount from a home price and percentage.

Calculate the number of units and revenue needed to cover fixed and variable costs.

Estimate how prices change over time at a constant inflation rate. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Estimate annual percentage rate from a loan amount, fees, payment, and term.

Calculate annual percentage yield from a nominal interest rate and compounding frequency.

Calculate the loan-to-value ratio for a property. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Convert an hourly wage into estimated daily, weekly, monthly, and annual earnings.

Convert an annual salary into estimated monthly, weekly, daily, and hourly pay.

Estimate gross paycheck amount from annual salary, pay frequency, and optional withholding percentage.

Calculate commission earned from sales and a commission rate. Use it to understand the key payment, cost, return, or cash-flow result before making a decision.

Find the median value of a list of numbers. Get a clear result with the inputs shown on the page.

Find the most frequently occurring value in a list of numbers. Get a clear result with the inputs shown on the page.

Calculate population standard deviation for a set of numbers. Get a clear result with the inputs shown on the page.

Calculate population variance for a set of numbers. Get a clear result with the inputs shown on the page.

Calculate the probability of an event from favorable and total outcomes. Get a clear result with the inputs shown on the page.

Calculate the number of ordered arrangements of r items selected from n items.

Calculate the number of unordered selections of r items from n items. Get a clear result with the inputs shown on the page.

Calculate the greatest common factor of two integers. Get a clear result with the inputs shown on the page.

Calculate the least common multiple of two integers. Get a clear result with the inputs shown on the page.

Solve a quadratic equation ax² + bx + c = 0. Get a clear result with the inputs shown on the page.

Raise a base number to a specified exponent. Get a clear result with the inputs shown on the page.

Calculate a logarithm for any positive value and valid base. Get a clear result with the inputs shown on the page.

Calculate the factorial of a non-negative integer. Get a clear result with the inputs shown on the page.

Calculate percentage error between an experimental value and an accepted value.

Convert a number to normalized scientific notation. Get a clear result with the inputs shown on the page.

Estimate basal metabolic rate using the Mifflin-St Jeor equation. Use the estimate as a general starting point and review the assumptions behind it.

Estimate total daily energy expenditure from BMR and activity level. Use the estimate as a general starting point and review the assumptions behind it.

Estimate daily protein, carbohydrate, and fat targets from calorie intake and macro percentages.

Estimate a daily protein target from body weight and an activity multiplier.

Estimate daily water intake using body weight and a simple weight-based guideline.

Estimate lean body mass from body weight and body fat percentage. Use the estimate as a general starting point and review the assumptions behind it.

Calculate waist-to-height ratio from waist and height measurements. Use the estimate as a general starting point and review the assumptions behind it.

Estimate one-repetition maximum from weight lifted and repetitions using the Epley formula.

Estimate a pregnancy due date from the first day of the last menstrual period.

Estimate maximum and target heart-rate zones using age and an intensity percentage.

Estimate a daily calorie target from maintenance calories and a chosen deficit.

Convert pressure between pascals, kilopascals, bar, psi, atm, and mmHg. Choose the units you need and get a quick, readable conversion.

Convert energy between joules, kilojoules, calories, kilocalories, watt-hours, and kilowatt-hours.

Convert power between watts, kilowatts, horsepower, and BTU/hour. Choose the units you need and get a quick, readable conversion.

Convert force between newtons, kilonewtons, pound-force, and kilogram-force.

Convert fuel economy between L/100 km, km/L, MPG US, and MPG UK. Choose the units you need and get a quick, readable conversion.

Convert angles between degrees, radians, gradians, arcminutes, and arcseconds.

Convert frequency between hertz, kilohertz, megahertz, and gigahertz. Choose the units you need and get a quick, readable conversion.

Calculate tip amount and total bill from a bill amount and tip percentage.

Estimate trip fuel cost from distance, fuel economy, and fuel price. Enter your values to get a quick result you can use right away.