1RM Max Calculator
1RM Max Calculator Summary
1RM Max Calculator is a free, with in-app purchases iOS app in Health And Fitness by Kazumasa Shimomura. Released in May 2016 (10 years ago). It has 24 ratings with a 4.12★ (good) average. Based on AppGoblin estimates, it reaches roughly 61 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store last updated May 18, 2026
1RM Max Calculator SDKs Summary
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4.12★
Ratings: 24
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App Description
Accurate 1RM calculation using 7 scientific formulas
Calculate your maximum weight for bench press, squat, and deadlift instantly!
Using the average of 7 different proven formulas (Epley, Brzycki, Lander, and more) trusted by professional athletes to determine the most reliable 1RM.
[Why choose this app?]
- High-precision 1RM calculation using multiple formulas
- Simple and intuitive interface
- Comprehensive progress tracking
- Data visualization for growth monitoring
[Key Features]
- Support for 3 major lifts (bench press, squat, deadlift)
- 7 scientific calculation formulas for precise results
- Calendar function for daily record management
- Graph display for progress visualization
- One-tap data saving
- Full offline functionality
[Perfect for]
- Athletes wanting to track training effectiveness
- Lifters needing accurate 1RM calculations
- Anyone planning structured training programs
- Fitness enthusiasts tracking their progress
Make your training more scientific and effective.
Take your lifting to the next level!
Trusted by over 7,000 users worldwide.