Strength calculator
AMRAP calculator
Turn one all-out set into Epley and Brzycki e1RMs and a load for your next session.
EPLEY e1RM
126.7 kg
BRZYCKI e1RM
124.1 kg
NEXT LOAD
94.1 kg
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How to use an AMRAP estimate
The two equations estimate a one-rep max from the same set. Their mean sets the percentage load. Sets above 12 repetitions are flagged because small rep-count differences create much larger max errors.