Contact & Corrections
Last updated
The fastest way to reach us is email: [email protected]. We aim to reply within two working days.
Reporting an error
Please include the calculator URL, the values you entered (the “Copy link” button captures them), what you expected and why. If you have a manufacturer data sheet or standard that disagrees with our default, a link helps a lot.
Suggesting a calculator
Tell us the project and what you need to work out. Requests directly shape our roadmap.
A contact form with spam protection is planned. Until then, email is monitored.