Contact: [email protected]
For technical bug reports, including the page URL and a sample input usually helps speed up review.
Scope
This contact channel is intended for content corrections, technical issues and general feedback.
It is not a channel for formal engineering approval, consulting or urgent safety validation.
What you can write to us about
Typical messages include a conversion factor that looks wrong, a calculator that returns an unexpected result, a broken link, a translation mistake or a suggestion for a unit or tool that is missing from the site.
Messages about advertising, partnerships or reuse of the embeddable tools can also be sent to the same address.
When reporting an error
- the full address of the page,
- the values you entered and the result you saw,
- the result you expected and, if possible, its source,
- your browser and device, if the problem looks technical.
Privacy
Your email address is used only to reply to your message and is not shared with third parties. How data is processed on the site is explained in the Privacy Policy.