About Press Equals

Press Equals is 385 free calculators in one place: loans and mortgages, calories and BMI, concrete and paint, unit conversions, dates, math and a long tail of everyday questions. There's no account and no paywall.

How the calculators work

Each calculator uses a standard, published method: amortization for loans, Mifflin-St Jeor and friends for calories, the U.S. Navy method for body fat, and so on. Where there's more than one accepted method you can pick, and the article under each calculator explains the formula so you can check it.

Answers update as you type, and the page address always holds your inputs, so you can bookmark a calculation or send the link to someone.

Estimates, not advice

Results are estimates for planning and learning. For taxes, health, legal or large financial decisions, confirm with a qualified professional. See the terms of use.

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