Strength Calculators

Estimating your One-Rep Max (1RM)

Input your current lifting stats:
Weight (unit doesn't matter): Reps: 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Estimated 1RM:

Changing your number of reps

Pick a rep target, and the estimated weight you can lift will be calculated for you: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Choosing a specific weight

You can estimate how many reps you can reasonably perform given a target weight: