Calculateur de 1RM
Estimate your one-rep max without testing it directly.
About this tool
Estimates your one-rep max using the Epley, Brzycki, and Lombardi formulas. Most accurate with 2-10 reps. Above 10 reps, accuracy decreases. All calculations happen in your browser.
This calculator is for informational purposes only and does not constitute medical, nutritional, or professional health advice. Consult a healthcare professional before making changes to your diet or exercise routine.