One-Rep Max Calculator
Convert any set to an estimated one-rep max with the Epley and Brzycki formulas, plus a full percentage table for programming your next block.
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Your inputs
100 kg
5 reps
Estimated 1RM
118.1kg
Adjusted for 1 rep in reserve, that set is worth about 6 true reps.
- Epley
- 120 kg
- Brzycki
- 116.1 kg
- 5-rep work set
- 102.7 kg
- 87% of 1RM
- Volume day (70%)
- 82.6 kg
- 8-10 reps
Estimates update instantly and are never sent anywhere.
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