One Rep Max Calculator - (1RM) app for iPhone and iPad

4.2 ( 4592 ratings )

Utilities Health & Fitness
Developer: Brian Mcabee

Free

Current version: 1.0.1, last update: 1 year ago
First release : 23 Nov 2021
App size: 483 Kb

This simple calculator is used to calculate your 1 rep max for maximum output in the gym! Simply enter a weight youve lifted for a certain amount of reps and see your results dynamically displayed on the screen.

Utilizing the Brzycki Formula, this 1RM calculator will allow you to get an accurate estimate of how much weight you can lift relative to a heavy exercise set of 10 reps or less. Please note that for the most accurate 1RM estimates, sets of lower repetitions are more accurate than sets of repetitions closer to 10.