Disclaimers

The information and tools on 1RMCalculator.net are provided for general fitness and educational purposes only.

Estimates, Not Exact Results

The calculators estimate your One-Rep Max (1RM) using published formulas such as Epley, Brzycki, Lander, Lombardi, Mayhew, O’Conner, and Wathan. You can view the result of a single formula or the average of all seven. Each result is an estimate; it is not a precise or 100% certain measure of your strength.

Your Body Is Unique

Your actual strength depends on factors such as sleep, nutrition, fatigue, experience, technique, and the lift itself. Always choose a weight that suits your personal capabilities.

Not Medical or Professional Advice

Nothing on this website constitutes medical advice or serves as a substitute for a qualified doctor, physiotherapist, or trainer. If you have an injury, a health condition, or any concerns, consult a professional before training.

Risk of Injury

Lifting heavy weights carries a risk of injury. Warm up properly, use correct technique, and train with a spotter or safety bars. You use this website and act upon its information at your own risk.

Contact Us

Questions about this disclaimer? Visit our contact page or email contact@1rmcalculator.net.