Email is the best way to reach us. We read every message and typically reply within a couple of business days.
What to get in touch about
- Feedback & suggestions — tell us what's working and what could be better.
- Feature requests — is there a calculator or converter you wish we had? Ask away.
- Bug reports — spotted a wrong result or something that looks off? Please include the tool name and the numbers you entered so we can reproduce it quickly.
- Business & partnerships — for collaborations or other enquiries.
Reporting an incorrect result
Accuracy matters to us. If a tool gives an answer you believe is wrong, email [email protected] with the tool name, the values you entered, the result you expected, and the result you saw. That detail helps us fix issues fast.
A note on privacy
Anything you send us by email is used only to respond to your message. For more on how we handle data across the site, see our Privacy Policy.