My 1 Rep Max
1RM Calculator & Lift Tracker
Only for iPhone
Free · In‑App Purchases
iPhone
Know your strength. Track your progress. Get stronger.
My 1 Rep Max is a powerful yet easy-to-use one-rep max (1RM) calculator and strength tracker designed to help you train smarter, measure your progress, and reach new personal records.
Whether you're working toward a bigger bench press, a stronger squat, or a new deadlift PR, My 1 Rep Max gives you the tools to understand your strength and keep improving.
CALCULATE YOUR STRENGTH
• Calculate your 1RM using seven established strength formulas
• Explore training weights based on percentages of your estimated max
• See your estimated rep maxes for 1–10 repetitions
• Work in pounds or kilograms
TRACK YOUR PROGRESS
Every lift tells part of your story. Save your workouts and build a lasting record of your strength.
• Log your lifts and review your training history
• Identify personal records and all-time highs
• Pin your favorite lifts for quick access
• Share your strength achievements
TAKE YOUR TRAINING FURTHER WITH PREMIUM
Unlock powerful tools to get more from every workout.
• Progress Charts — Visualize your strength gains over time with interactive charts
• Plate Calculator — Quickly figure out which plates to load on your barbell so you can focus on lifting
• RPE Tracking — Record how hard your sets feel and incorporate effort into your strength estimates
• Custom Exercises — Track the lifts that matter most to you
• Extended Calculations — Estimate your 1RM from sets of more than 10 repetitions
ONE-TIME PURCHASE. NO SUBSCRIPTION.
Unlock all Premium features with a single purchase. No recurring fees.
Whether you're checking your numbers between sets or tracking months of progress, My 1 Rep Max makes it easy to see how far you've come—and how much stronger you can become.
A NOTE ABOUT SAFETY
One-rep max calculations are estimates. Accuracy can vary based on training experience, technique, fatigue, and individual physiology.
Attempting a true one-rep maximum involves risk. Always use appropriate safety equipment, have a qualified spotter when necessary, and never attempt a weight you aren't prepared to lift safely.
Plate Calculator (Premium)
Less math. More lifting. Just pick your target weight, and we'll show you exactly which plates to load on your barbell.
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
- 23.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- My 1 Rep Max Premium $7.99
- Copyright
- © 2026 McLovin Software