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The 1RM Calculator


4.0 ( 1230 ratings )
Health & Fitness
Developer: Mark Malekoff
1.99 USD

THE 1RM CALCULATOR - an essential training tool for anyone serious about their fitness

>> ALL NET PROCEEDS GO TO RIGHT TO PLAY <<
This app was made to help people have better workouts. I am thankful that I have the access and ability to workout, and therefore all net proceeds will be going to Right To Play. Support a great cause and get a great training tool.

+++ Ability to start with one rep max and work BACKWARDS +++

- INCREASE YOUR STRENGTH - make your workouts as productive as possible and reduce the guesswork of what weights to lift

- Specific formulas for squat, deadlift and bench based off coefficients released by the NSCA

- Easy to calculate percentage after calculating one rep max

The 1RM Calculator provides a standard estimated "one rep max" based off of the OConner et al. formula which is the standard formula in all "One-Rep-Max Tables" and in all wod books.

The 1RM Calculator also provides calculations for specific exercises (Bench, Deadlift and Squat) using formulas derived from coefficients released by the NSCA.

Enter information into any two of the three boxes, select your calculation type (Standard, Bench, Deadlift or Squat), hit calculate, and let The 1RM Calculator do all the math for you. Please note that for the Bench, Deadlift and Squat calculation, the number of reps must be between 1-10.

Once you have calculated your 1RM and want to calculate a percentage of that weight, simply hit the "%" button and utilize this screen in the same way that the 1RM screen is utilized; enter values into two of the three boxes and hit calculate.