released · 2025
Top Set Calculator
One-rep max, RPE, plate, training max, and strength score calculators for lifters, in one offline app.
- Built with
- Swift, SwiftUI
- Topics
- Fitness, Health, Strength Training
Top Set Calculator puts the numbers lifters look up most often in one place: estimated maxes, RPE loads, plate math, training max percentages, and strength scores. It works offline and doesn’t need an account.
Calculators
One-rep max
Enter a weight and the reps you did to estimate your 1RM. The app shows the result from several formulas, including Epley and Brzycki, along with a percentage table running from heavy singles down to light work sets.
RPE
Pick your target reps and RPE, and the app uses your estimated 1RM and a powerlifting-style RPE chart to give you a weight.
Plates
Enter a target weight to see a barbell diagram with the plates to load on each side. It handles lb and kg plates and uses competition colors.
Training max
Set a training max and see the common percentages, which is handy for 5/3/1 and other percentage-based programs.
Strength scores
Calculate Wilks, DOTS, and IPF GL points to compare lifts across bodyweights.
Premium
- Custom plate colors
- A plate inventory, so the calculator only uses plates you own
- More plate sizes, including small change plates
Support
Frequently asked questions
How do I calculate my one-rep max? Enter the weight and the reps you completed. You’ll see estimates from several formulas, including Epley and Brzycki.
What is RPE? RPE stands for rate of perceived exertion. It rates how hard a set felt on a scale of 1 to 10, where 10 means you couldn’t have done another rep. The RPE calculator gives you a weight for a target number of reps at a target RPE.
What if my exact weight can’t be loaded? The plate calculator rounds to the closest weight you can make with your plates.
Which strength scores are supported? Wilks, DOTS, and IPF GL.
Is my data backed up? No. Settings and preferences are stored only on your device and aren’t synced to the cloud.
Troubleshooting
The numbers look wrong. Check that you’ve picked the right unit, kg or lb, and that the weight and reps are entered correctly.
The app crashes or freezes. Close and reopen it. If that doesn’t help, delete and reinstall it. You’ll need to set your preferences again afterward.
Contact
For problems not covered here, or for feedback and feature requests, email gregmcinnescontact@gmail.com. It helps if you include:
- Your device model, such as iPhone 15 Pro
- Your iOS version (Settings > General > About)
- What happened, or what you’d like to see
- Screenshots, if you have them
I usually reply within one or two business days.
Privacy
Top Set Calculator doesn’t collect, store, or transmit personal data. Everything stays on your device and is never shared with anyone. See the privacy policy for details.