All Calculators

Browse our full collection of free online calculators. All tools run entirely in your browser.

18 Calculators — 100% Free

Finance

Calculate future value with compound interest over time.

Monthly payments, total interest, and amortization for any loan.

Home loan payments with down payment and interest rate.

Car loan payments with down payment and trade-in value.

Return on investment with annualized ROI.

Profit margin, markup percentage, and selling price.

Convert between hourly, weekly, monthly, and annual salary.

Split bills and calculate tips for any group size.

Find the final price after single or stacked discounts.

Body Mass Index with WHO health categories.

Total Daily Energy Expenditure and calorie goals.

Body fat percentage using the US Navy method.

Exact age in years, months, and days from your birthdate.

3-in-1 percentage calculations for any scenario.

Length, weight, and temperature conversions.

Date difference and add or subtract days from a date.

Calculate your college GPA with dynamic course list.

Generate secure random passwords with custom options.