One Rep Max Calculator
Calculate your one-rep max (1RM) for bench press, squat, and deadlift using standard formulas like Brzycki and Epley.
one rep max
weightlifting
bench press calculator
Common Lift Examples
Popular lifts with typical working weights
1Lift Details
Enter your lift weight, reps, and preferred formula
Formula Info: Different formulas provide slightly different 1RM estimates. Brzycki is most commonly used. For best accuracy, use weights close to your actual 1RM.
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