1RM Percentage Calculator

Name: 1RM Percentage Calculator
Rating: 5 (4 reviews)
Author: Jonathan McDill

By: Jonathan McDill

Percentage-Based Workout Util

Features & Capabilities

1RM Percentage Calculator helps you set up and calculate your percentage based workouts. With custom percentages for ultimate control! Once you set up your percentages, easily view your calculated reps for each set in your workout. Use the integrated 1RM calculator to get an estimate of your one rep max. You can fully customize your plate weights and barbell. This utility allows you to easily set up your workouts without all the math!

Main Features:

Percentage based workout sets calculator
Automatic plating algorithm
One rep max estimate calculator (Brzycki formula)
Customizable weights

** UNLOCKED Version Features **

Unlimited sets
Keep track of reps for each set
Convenient scroller to move through your sets one at a time
Barbell plating helper with graphic
Themes

User Growth & Download Statistics

App

By:

Jonathan McDill

Rating:

5.00

(4) 5.00

Version:

2.0 Last updated: 2026-01-13

Version code:

881402747

Creation date:

2023-07-28

Compatible devices:

Size:

33.48MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 542,579 ▲ 583,454

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Jonathan McDill

Apple Apps Store

https://apps.apple.com/us/app/1rm-percentage-calculator/id6451496905

User Reviews

For someone like me who is math challenged, this app is a dream. I love that it will calculate percentages right in the app for me, and my FAVORITE part is the plates guide!! I feel like that science lady meme in the gym trying to figure out which plates I need to put on my bar to add up to the right weight, but this makes it all smooth and confident (even if I still struggle to get the collar off the bar at times, lol).