One Rep Max Calculator — Estimate Your 1RM

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Weight Lifted (kg)

Reps Completed

Best accuracy with 2-10 reps

Coach Ryan Okafor

Strength & Conditioning Coach, CSCS

"Knowing your one-rep max helps you set training percentages. This calculator estimates your 1RM from any submaximal lift."

✓ CSCS ✓ NSCA Certified

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