For the interactive calculator, open the full CalcHealth page.
Open Full CalculatorFrequently Asked Questions
How accurate is the 1RM calculator?
Most accurate for sets of 1–10 reps. Accuracy decreases for sets above 10 reps.
Calculate your one-rep max (1RM) for any lift using the Epley formula. Find your strength percentages for programming.
For the interactive calculator, open the full CalcHealth page.
Open Full CalculatorMost accurate for sets of 1–10 reps. Accuracy decreases for sets above 10 reps.