Subscribe to our newsletter:

Gym1RM (One Rep Max Calculator)

iPhone / iPad
  • Utilities
  • Health & Fitness
I want this app
Download from AppStore

Gym1rm is a utility you can use to predict your theoretical one rep max (1rm).

To use:
1. Go to gym
2. Select exercise you wish to know your 1rm
3. Select a weight you can perform 1-15 reps before reaching positive failure.
4. Perform exercise
5. Enter weight used
6. Enter number of reps performed
7. User Rep Max slider to find your predicted rep max for 1-15 reps

The application defaults to kilograms but you can change this to pounds in the iPhone Settings applications.