Contact

Found a calculation that looks off, have a calculator idea, or need to reach us for another reason? Email us and we’ll get back to you.

Email: hello@equateworld.com

Reporting a calculation error

If you believe a calculator produced an incorrect result, please include the calculator name, the exact inputs you used, and the result you expected. This helps us verify and fix the issue quickly.

Suggest a calculator

Have an idea for a calculator we don’t have yet? Send us a note describing what it should calculate and we’ll consider it for a future update.