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One Rep Max Calculator

Estimate your 1RM for any lift using weight and reps performed.

Inputs

Estimated 1RM:
Brzycki112.5
Epley116.7
Lander113.7
Average114.3
70%80.0 | 80%: 91.4 | 90%: 102.9

Recent Calculations

No calculations yet — results will appear here automatically.