Terms of Use & Disclaimer

Last updated: 14 November 2026

Using this site

RepMaxLab provides free online calculators and educational content about strength training. By using this site you agree to these terms. The tools are provided "as is", free of charge, and may be changed or removed at any time.

Estimates, not guarantees

Calculator results are estimates based on published formulas and population data. Your actual one rep max, score or strength level may differ because of technique, equipment, fatigue and individual variation. Results are intended for training planning and education only.

Health and safety disclaimer

Strength training carries inherent risk of injury. The content on this site is general educational information — it is not medical advice, coaching, or a substitute for professional guidance. Consult a qualified medical professional before beginning or changing an exercise program, especially if you have any injury or health condition. When training: warm up properly, use correct technique, use spotters or safety equipment for heavy lifts, and stop if you feel pain. You use the information on this site and train entirely at your own risk, and RepMaxLab is not liable for any injury or loss arising from its use.

Accuracy

We work to keep formulas, coefficients and tables correct and current, and we fix reported errors promptly. However, we make no warranty that every result is error-free or suitable for a particular purpose, including official competition scoring — always confirm competition scores with your federation's official tools.

Intellectual property

The text, design and code of this site belong to RepMaxLab. Formula names and scoring systems (including DOTS and Wilks) belong to their respective creators and federations and are used here descriptively. You may link to any page on this site freely.

External links

This site may link to third-party websites. We are not responsible for their content, accuracy or practices.

Changes

These terms may be updated from time to time; the current version will always be on this page.

Contact

Questions about these terms: contact@repmaxlab.online or via the contact page.