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198 calculators for money, health, school, home projects and more. Each one shows its formula and a worked example.
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Why CalcArcade
Your numbers stay with you
Every calculation runs in your browser, on your device. The numbers you type are never sent to a server, so there is nothing to collect. You can check this in your browser's network tab.
Formula and worked example
Each calculator shows the formula it uses, its assumptions and a worked example, so you can check the result instead of trusting it.
No sign-up
No account, no email, no paywall. Open a calculator and use it. Links keep your inputs, so you can share or print a result.
No clutter
No pop-ups and no autoplay. Pages are small, quick on a phone and follow the same simple layout everywhere.