Calculators

Free online calculators for finance, health, math, and everyday life. Instant results, no sign-up required.

BMI Calculator

Calculate your Body Mass Index in metric or imperial units.

Calculate percentages, increase/decrease, and more.

Calculate exact age in years, months, and days.

Calculate monthly payments, interest, and amortization.

Estimate US federal and state income tax from your salary.

Calculate your GPA on a 4.0 or weighted scale.

See how your money grows with compound interest.

Calculate tips and split bills between any number of people.

Calculate sale prices and savings from discounts.

Calculate the time between two dates.

Estimate returns on stocks, ETFs, and portfolios.

Calculate daily calorie needs and macros.