Terms and Conditions

Last updated: October 2026

By using 1RMCalculator.net, you agree to these terms. If you do not agree, please do not use the website.

Use of the website

You may use this website and its calculators for personal, non-commercial purposes. You agree not to misuse the site, attempt to disrupt it, or copy it in a way that harms us or other users.

Information is not advice

All calculators, estimates and percentage charts are for education and general information only. They are not medical advice or a substitute for a qualified trainer. Heavy lifting can cause injury, so warm up, use safety bars or a spotter, and speak to a professional if you are unsure. Please also read our Disclaimer.

No guarantee of accuracy

The website and its tools are provided “as is” and “as available”. Results are estimates and may differ from your real strength. We do not guarantee that the site will always be error-free or available.

Intellectual property

The text, design and code of this website belong to 1RMCalculator.net unless stated otherwise. You may not copy or republish them without our written permission. You may link to our pages.

External links

Our pages may link to other websites. We do not control them and are not responsible for their content or practices.

Limitation of liability

To the fullest extent permitted by law, 1RMCalculator.net is not liable for any injury, loss or damage, whether physical or financial, arising from your use of, or reliance on, this website and its estimates.

Changes to these terms

We may update these terms from time to time. Continued use of the website after a change means you accept the updated terms.

Contact

Questions about these terms? Email contact@1rmcalculator.net or visit our Contact page.