One-rep max calculator
Your estimated best single from a set of several repetitions.
One-rep max calculator
Your estimated best single from a set of several repetitions.
114.6
Estimated one-rep max
116.7
Epley
112.5
Brzycki
108.9
95% of it
103.1
90% of it
97.4
85% of it
91.7
80% of it
85.9
75% of it
80.2
70% of it
68.8
60% of it
Estimates are best from sets of 10 or fewer, and heavier lifts tire you sooner than the formula supposes. Same unit in, same unit out.
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