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Health & Fitness
One Rep Max Calculator
Estimate your 1RM from any working set. Get a full rep-max table and compare 6 formulas.
Your Lift
lbs
kg
Weight lifted (lbs)
Reps completed
Calculate 1RM
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Estimated One Rep Max (Brzycki avg)
Rep Max Table
Reps
Weight
% of 1RM
Formula Comparison