Contact Us
Report an incorrect calculator result, suggest a new hex tool, or ask a question — here's how to reach us.
How to Reach Us
We read every message and reply as quickly as we can. No contact form, no account — just email.
What You Can Contact Us About
- Reporting an incorrect result from any calculator on this site
- Suggesting a hex tool or conversion that's missing
- Asking for help understanding a conversion or calculation
- Accessibility feedback or issues using the site with assistive technology
- General feedback on layout, content, or usability
Reporting Calculator Issues
If a result looks wrong, include the exact input you entered, which tool page you were on, and the output you expected. That's usually enough for us to reproduce and fix it quickly — vague reports like "the calculator is broken" are much harder to act on.
Response Time
This site is actively maintained by a small team, so replies aren't instant, but we do read and respond to every message.
Privacy Note
Emailing us shares only what you choose to include in your message. We don't add your email to any mailing list. See the Privacy Policy for details.