Contact

Found a bug? Spotted a platform spec that's out of date? Want a new preset or feature added? We read every message.

What to include

• Bug reports — the numbers you entered, the result you expected, and your browser/device.
• Spec corrections — a link to the platform's official documentation if possible.
• Feature requests — a sentence about the workflow you're trying to speed up helps us design the right thing.

A note on privacy

Emailing us is the only way any information reaches us — the calculator itself sends nothing. See our privacy policy for details.