1 Rep Max Calculator

1 Rep Max Calculator


1RM is a must have for any Bodybuilder, Fitness Fanatic, or Gym Jockey. Using popular formulas, it can accurately estimate your 1 Rep Max for Bench Press, Squats, Deadlift, or any other exercise in your workout routine. It works for barbells and dumbbells.

It works by estimating with data you already know. You enter the reps and weight you were previously able to successfully complete and it will estimate your 1 rep max!

This app helps keep you safe by giving you an estimate on how much you can lift before actually attempting it yourself. This helps to prevent muscle and body damage so you can keep your health and continue to build your strength.

1RM also has a percentage chart for those who are doing workouts which require knowing the percentage of your 1 rep max.

This app works best when the reps used are less than 12. I recommend using the reps between 3 and 10 for highest accuracy. For this reason, I recommend you do not use this to calculate maxes for exercises such as push ups sit ups or crunches.

1RM will undoubtedly supplement any bodybuilders lifting regimen and can help you achieve more effect sets so you can build more muscle.

ALWAYS USE A SPOTTER. APPLICATIONS LIKE THIS ARE DESIGNED TO MAKE WEIGHT LIFTING SAFER BUT CANNOT GUARANTEE YOUR NOR ANYONE ELSE'S SAFETY. THESE CALCULATIONS ARE ONLY ESTIMATES AND CAN BE INACCURATE.

Recent changes:
Version 3.0.1 - 8/22/12
- Fixed crash on percentages screen

Version 3.0 - 8/22/12
- New Layout
- Landscape mode
- Improved Percentages table
- Improved bug handling
- Ads can now be closed
- Fixed icon on high res screens
- Fixed cut offs on shorter screens
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Free
91
4.6
User ratings
1139
Installs
100,000+
Concerns
0
File size
681 kb
Screenshots
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About 1 Rep Max Calculator
1RM is a must have for any Bodybuilder, Fitness Fanatic, or Gym Jockey. Using popular formulas, it can accurately estimate your 1 Rep Max for Bench Press, Squats, Deadlift, or any other exercise in your workout routine. It works for barbells and dumbbells.

It works by estimating with data you already know. You enter the reps and weight you were previously able to successfully complete and it will estimate your 1 rep max!

This app helps keep you safe by giving you an estimate on how much you can lift before actually attempting it yourself. This helps to prevent muscle and body damage so you can keep your health and continue to build your strength.

1RM also has a percentage chart for those who are doing workouts which require knowing the percentage of your 1 rep max.

This app works best when the reps used are less than 12. I recommend using the reps between 3 and 10 for highest accuracy. For this reason, I recommend you do not use this to calculate maxes for exercises such as push ups sit ups or crunches.

1RM will undoubtedly supplement any bodybuilders lifting regimen and can help you achieve more effect sets so you can build more muscle.

ALWAYS USE A SPOTTER. APPLICATIONS LIKE THIS ARE DESIGNED TO MAKE WEIGHT LIFTING SAFER BUT CANNOT GUARANTEE YOUR NOR ANYONE ELSE'S SAFETY. THESE CALCULATIONS ARE ONLY ESTIMATES AND CAN BE INACCURATE.

Recent changes:
Version 3.0.1 - 8/22/12
- Fixed crash on percentages screen

Version 3.0 - 8/22/12
- New Layout
- Landscape mode
- Improved Percentages table
- Improved bug handling
- Ads can now be closed
- Fixed icon on high res screens
- Fixed cut offs on shorter screens
User reviews of 1 Rep Max Calculator
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Android Market Comments
A Google User
Aug 24, 2014
Works great Gets me real close to the weight I need.
A Google User
Aug 22, 2014
Clean No nonsense, easy, and precise.
A Google User
Aug 22, 2014
Pretty accurate but not 100% accurate. It's about 16 lbs over your original max.
A Google User
Aug 22, 2014
Awesome quick reference I'm an exercise physiologist working with high class athletes daily. Gives me quick and accurate training volumes for in-season and off-season strength programs
A Google User
Aug 16, 2014
☺ Great app