Everyday Life & Health / Fitness

One Rep Max Calculator

Formula

Weight Lifted (lbs or kg)

Reps Performed

• Brzycki: 1RM = Weight / (1.0278 - 0.0278 × Reps)

• Epley: 1RM = Weight × (1 + Reps / 30)

• Lombardi: 1RM = Weight × Reps^0.1

See Also