1 Rep Max Calculator

1 Rep Max Calculator

100,000 - 500,000 downloads

Add this app to your lists
View bigger - 1 Rep Max Calculator for Android screenshot
View bigger - 1 Rep Max Calculator for Android screenshot
View bigger - 1 Rep Max Calculator for Android screenshot
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.

Tags: 1 rep max chart, rep max calculator, estimated 1rm chart, 1rm chart over 15 reps, one rep max calculator, estimated bench press max chart, bench press calculator, formula for calculating one rep max, bench press calculator bodybuilding, percent of 1 rm calculator.

Recently changed in this version

Version 3.2.1
- Fix crash on Percentages screen when coming from an old version

Version 3.2
- Fix Remembering Percentages weight
- Round Percentage weights to nearest 5 is rounding is enabled
- Inputs now clear when selected for easy number entry
- Other minor fixes


Comments and ratings for 1 Rep Max Calculator
  • (74 stars)

    by Rick D evil trini on 13/08/2014

    Great to have an app like this just in case you need clarification on your 1mr

  • (74 stars)

    by Zack Levi on 11/08/2014

    Doesn't remember what weight as others have said. Should be able to change it to 10lb increments or whatever u want.

  • (74 stars)

    by Geo Mora on 10/08/2014

    It is a Good tool to workout

  • (74 stars)

    by Eugene Saraco on 08/08/2014

    Very useful

  • (74 stars)

    by Chris Agnew on 07/08/2014

    Worth the DL

  • (74 stars)

    by Jkingus on 06/08/2014

    It ok

  • (74 stars)

    by Mack Cruz on 02/08/2014

    It's cool that it indicates what plates you will need when you tap the rep max value in the first screen. It would be awesome if the same feature is available in the percentages screen as well. Also, percentage values should be rounded up to the nearest 5 or 0 since there no weight for some decimal values like 0.75.