Contact
The fastest way to reach us is email:
We read everything — bug reports, feature requests, converter suggestions, and corrections to math or reference data are all welcome. Replies usually within a few days.
Found a bug?
Source code is on GitHub. Open an issue with the page URL, what you entered, what you expected, and what you got. Screenshots help.
Looking for a converter we don't have?
Email or open a GitHub issue. We prioritize converters that get high search volume and have authoritative source data we can cite (when applicable).