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One-Rep Max (1RM) Predictor

Enter any weight and rep count — get your predicted max lift using proven formulas.

Weight lifted (lbs)

Number of reps completed

Exercise (for context)

💪 Your Predicted Max

0 lbsEpley Formula

0 lbsBrzycki Formula

0 lbsAverage Estimate

0 kgIn Kilograms

📊 Training Percentages