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One Rep Max Calculator
Estimate your max single based on reps and weight. With optional strength level insights.
5 reps
5 reps
lb
lb
Strength Level Insights
Estimated One Rep Max
5@225lb
253lb
Using the
Brzycki
formula
E1RM Algorithm:
Brzycki (253lb)
OConner (253lb)
Wathan (253lb)
McGlothin (256lb)
Epley (263lb)
Lombardi (264lb)
Mayhew (268lb)
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