Contact us

Last updated: 1 November 2026

We'd love to hear from you. The best way to reach us is by email:

contact@calcten.com

What to include

• Reporting an error: the page address, the values you entered and the result you expected.
• Suggesting a calculator: what you want to calculate and the units or products you use.
• Privacy requests: please see our privacy policy for your rights and how to exercise them.

We aim to reply within a few working days. We can't give project-specific professional advice; for structural or safety-critical work, please consult a qualified professional.