Calculate your one rep max for any exercise. Enter your weight and reps to estimate your 1RM using the Epley, Brzycki, and Lombardi formulas.
Your one-rep max (1RM) is the maximum weight you can lift for a single repetition. Knowing your 1RM helps program training percentages for strength, hypertrophy, and power phases without actually testing a heavy single.
Formula: Epley: weight × (1 + reps/30)
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