Contact and Report a Calculation Issue

Found a result that looks wrong, or have a question? Send a short report so the issue can be reproduced and fixed.

The most useful reports include where it happened and what you expected. Use the template below: it captures the page URL, the units and measurement basis, your inputs, the result you saw and the result you expected. Copy it into an email, or use the email action if an address is configured.

A working contact email is a production setting. Until a real address is in place, use the Copy issue report button and send it through your own email client; nothing is submitted to a server from this page.