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Embed the One Rep Max (1RM) Calculator

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Weight Lifted

1 lb1,500 lb

Reps Performed

120

Estimated 1 Rep Max

215.8

Your estimated max weight for a single repetition.

85% of 1RM (Strength)

183.5

85% of your 1RM — typical for strength-focused training (3-5 reps).

70% of 1RM (Hypertrophy)

151.1

70% of your 1RM — typical for hypertrophy/muscle-building training (8-12 reps).

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