1-RM Calculator

Calculator - 1-RM
Estimated reps at percent of 1-repetition maximum. [Weight × ( 1 + ( 0.033 × Number of repetitions )] Baechle & Earle (2000)

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Reps 1 2 3 4 5 6 7 8 9 10 12 15
% of 1 RM 100 95 93 90 87 85 83 80 77 75 67 65

lbs
(1 kg = 2.2 lbs)
reps
(Please enter a value between 2- 10)
lbs
lbs
Est. reps: 2
lbs
Est. reps: 4
lbs
Est. reps: 6
lbs
Est. reps: 8
lbs
Est. reps: 10
lbs
lbs
Est. reps: 12
lbs
Est. reps: 15
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