This app helps you plan and calculate percentage-based workouts. It includes a one-rep max estimator and customizable weight settings for a personalized training experience. Easily track your sets and reps without manual calculations.
2.0
January 13, 2026
- All new design! - Ability to save and load workouts - Custom plate weight management - KG/LB selector - Themes for unlocked version - Bugfixes
More$2.99
1RM & Sets Calculator
1RM Calc & Custom Percentage Calc
1RM Percentage Calculator is used to help you set up and calculate percentage-based workouts. It also includes a one-rep max estimator and allows for custom weight settings.
No, the 1RM Percentage Calculator does not contain advertisements. It is a free app with optional in-app purchases for unlocked features.
1RM Percentage Calculator has a high rating of 5.0 stars based on 3 user reviews.
1RM Percentage Calculator is available for iPhone and iPod devices.
The latest version of 1RM Percentage Calculator is 2.0, last updated on January 13, 2026. This indicates a recent update, suggesting ongoing support.
The UNLOCKED version of 1RM Percentage Calculator offers unlimited sets, tracking of reps for each set, a convenient scroller, a barbell plating helper with graphics, and themes.
1RM Percentage Calculator has an age rating of 4+, making it suitable for a wide range of users.
1RM Percentage Calculator uses the Brzycki formula to estimate your one rep max.
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