Last Updated by David Bai on 2025-03-14
1. 1RM Calculator is a tool to help you determine your 1-rep max! Because of the nature and stress of attempting a 1-rep max, this utility allows you to enter in a weight you successfully lifted at the number of reps you performed in order to see what your estimated 1-rep max is.
2. This not only helps give you an idea of the weight to attempt when actually performing a 1-rep max but also to gauge your strength and compare different rep schemes performed at different reps.
3. If one week you were able to bench press 190 lbs at 6 reps and the next week you did 200 for 5, this app gives you a way to compare the two as best as possible (190 lbs @ 6 reps gives a 1-rep max estimate of 223 lbs vs.
4. 1RM Calculator is only intended to give estimates based on the data you enter.
5. Always ensure you have a spotter, and work your way up to your limit with more than adequate warmup to prevent injuries.
6. Since these are calculated values they may vary with actual measured values.
7. Liked 1RM Calculator? here are 5 Health & Fitness apps like OneRM; Army First Aid; ithlete Train.Recover.Perform; Relax Melodies Seasons: Mix Rain, Thunderstorm, Ocean Waves and Nature Ambient Sounds for Sleep, Relaxation & Meditation; Army Survival Skills;
Or follow the guide below to use on PC:
Select Windows version:
Install 1RM Calculator - One Rep Max app on your Windows in 4 steps below:
Download a Compatible APK for PC
Download | Developer | Rating | Current version |
---|---|---|---|
Get APK for PC → | David Bai | 4.46 | 4.5 |
Get 1RM Calculator on Apple macOS
Download | Developer | Reviews | Rating |
---|---|---|---|
Get Free on Mac | David Bai | 196 | 4.46 |
Download on Android: Download Android