Calculate weight and percentages for lifts. Convert between kilograms and pounds. Adjust for different rep ranges and training goals. Input user-specific data for accurate calculations.
by Kevin Tucker★ 5.07 ratingsHealth & Fitness$0.99Data updated 2026-09-16
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Calculate 1 Rep Max using popular formulas by selecting a lift type, entering weight, and repetitions. Log results to track progress over time. Premium version allows custom lifts and more than 10 repetitions.