Debret Site Calculators
Support
Contact Debret if a calculator is not loading, a result appears incorrect, or you need help with the iPhone or Android app.
Quick checks
- Confirm the device has an active internet connection.
- Close and reopen the installed app if a page appears stale.
- Check that decimal values use a full stop, such as 7.5.
- Include the calculator name, entered measurements and expected result when reporting a calculation issue.