My 1 Rep Max
1 Rep Max Calculator
Only for iPhone
Free · In‑App Purchases
iPhone
My 1 Rep Max is a 1 Rep Max calculator and log book. Use any of the most popular 1 Rep Max formulas to estimate your 1 Rep Max weight and keep a log to see your progress over time.
Simply select a lift type, enter a weight, and a number of repetitions (up to 10), and tap the Calculate button to see your 1 Rep Max.
With My 1 Rep Max Premium, you can create your own custom lifts and use more than 10 repetitions to perform calculations.
A Note About Safety:
One rep maximum calculators are used to estimate the maximum amount you can lift. The degree of accuracy can vary significantly depending on your experience with weight training as well as your muscular composition. Most one rep maximum calculators are designed for experienced strength trainers so, if you are inexperienced, you may find your actual one rep maximum is much lower because your body is not accustomed to the stress of lifting heavy weight. Because it can be dangerous to attempt to lift your estimated maximum, always have a spotter with you. Seriously.
My 1 Rep Max will never ask you for a rating or review. However, if you'd like to take the time to rate or review it, you can do so from the Settings screen.
Updated for iOS 27.
The developer, James T. Constant, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- James T. Constant
- Size
- 8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later.
- iPhone
- Languages
- English and Hungarian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- My 1 Rep Max Premium $0.99
- Copyright
- © 2024 McLovin Software