Reporting errors
If you find an incorrect conversion factor, outdated regional measure, or misleading result, please report it through the contact page. Include the tool, the values you entered, the result you received, and the reference you believe is correct.
Review process
Reported issues are reviewed against authoritative sources. If a correction is accepted, we update the engine, add or update tests to prevent regression, and record the change in the changelog.
Changelog
Accepted corrections and feature updates are listed on the changelog page so you can see what has changed between versions.