One Rep Max Calculator

Want to know your One Rep Max without actually risking injury?

Calculate it based on how much weight you can do a higher number of reps at.

Calculate your 1RM or 5RM here!

Enter Weight (pounds)
Enter Reps

1 Rep (1RM)
2 Reps
3 Reps
4 Reps
5 Reps
6 Reps
7 Reps
8 Reps
9 Reps
10 Reps