Calculators

Money, health, school, dates and everyday maths. Nothing to install, no account, and your numbers never leave your device.

All 25 tools

Math & Units (7)

Scientific Calculator

A free online calculator with brackets, powers, roots, logs, trigonometry in degrees or radians, and a history of your answers.

Graphing Calculator

Plot up to three functions of x on a graph, zoom in and out, and read exact values by hovering.

Percentage Calculator

Find a percentage of a number, what percent one number is of another, and the percent change between two numbers.

Average Calculator

Find the mean, median, mode, range and standard deviation of any list of numbers.

Fraction Calculator

Add, subtract, multiply and divide fractions and mixed numbers, with the answer in lowest terms.

CM to Inches Converter

Convert centimetres to inches and feet, or any length between millimetres, centimetres, metres, inches, feet, yards and miles.

Unit Converter

Convert length, weight, temperature, volume, area, speed, time and digital storage, with every unit shown at once.

Finance (10)

Mortgage Calculator

Work out your monthly mortgage payment with property tax, insurance and extra payments, and see the full payment schedule.

Loan Calculator

Find the monthly payment (EMI) and total interest on a personal, home, car or student loan, and see how extra payments shorten it.

Auto Loan Calculator

Estimate a car payment from the price, down payment, trade-in, sales tax and interest rate.

Compound Interest Calculator

See how savings grow with compound interest and regular deposits, year by year.

SIP Calculator

See what a monthly investment could grow to, with a yearly step-up and a starting lump sum.

GST and VAT Calculator

Add GST or VAT to a price or take it out, with the CGST and SGST split for India and any custom rate.

Salary Calculator

Turn an hourly, weekly, monthly or yearly pay rate into all the others, using your own hours and weeks.

Paycheck Calculator

Estimate your US take-home pay after federal tax, Social Security, Medicare, state tax and deductions (2026 tax figures).

Tip Calculator

Work out the tip, the total and each person's share of a bill, with quick tip buttons and optional rounding up.

Discount Calculator

Find the sale price after a percentage off, with an optional extra coupon and sales tax, or the percent off from two prices.

Health (2)

BMI Calculator

Calculate your body mass index in kilograms or pounds, see your category and the healthy weight range for your height.

Calorie Calculator

Estimate the calories you burn each day and how many to eat to lose, keep or gain weight.