Services

Everything on CalcHub is free. Here is what we provide today:

1. The calculator library

A growing library of online calculators across finance, math, health & fitness, unit conversions, construction, science and everyday life. No account, no paywall, no result hidden behind a sign-up.

2. Worked examples and guides

Every calculator includes its formula and a worked example, and our guides explain the concepts behind the most-used tools in plain language.

3. Country hubs

Country hubs for the US, UK, Canada, Australia and India explain local currencies, units and conventions so the universal math lands correctly where you live.

4. Error reporting and calculator requests

If a formula can be checked, it can be challenged. Use the contact form to report a suspected error (include the calculator name and your inputs) or to request a calculator we have not built yet. Verified errors are corrected and the test suite is updated so the error cannot come back.