About EveryCalc

EveryCalc started with a simple frustration: looking up a mortgage payment or a BMI shouldn't require wading through pop-ups, cookie walls and pages that load slower than the math takes. So we built the calculator site we wanted to use ourselves.

What Makes EveryCalc Different

• Everything runs in your browser. None of the 29 calculators sends your inputs to a server — your salary, your weight and your due date are nobody's business but yours.
• Explanations, not just numbers. Every calculator page documents its formula, walks through a worked example, and answers the questions people actually ask.
• Fast and free. Static pages, minimal JavaScript, no sign-up, no paywall. The site is funded by unobtrusive advertising.

Accuracy

We use established, citable formulas — Mifflin-St Jeor for calories, the U.S. Navy method for body fat, standard amortization for loans — and state each tool's limitations openly. If you spot an error, please tell us: info@everycalc.app. Health and finance results are informational estimates, not professional advice.

Who Is Behind This?

EveryCalc is an independent project, built and maintained by a solo developer. Full legal details are on the imprint page.

Get in Touch

Ideas for new calculators, feedback or corrections — we read everything: Contact us.