Contact Us
Questions, corrections and suggestions about the calculators and guides.
Email contact
Send email opens your email app. You can also copy the address into your preferred email service.
What you can contact us about
Questions about a calculation, problems using a page, corrections to a guide, or suggestions for a tool or feature.
Reporting a calculation problem
These details help us understand what happened:
- The page link or calculator name.
- The measurements you entered, including units and any added or subtracted sections.
- The result you received and what you expected instead.
You can also attach a screenshot to your email. For a page that does not work as expected, include your browser and device.
Leave out your home address and any other personal information that is not needed to explain the problem.
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