One Rep Max Calculator
Quick strength estimates without spreadsheets or clutter.
One Rep Max Calculator helps lifters estimate strength numbers from real working sets. Enter the weight and reps, then get clean, useful estimates without digging through charts or complicated dashboards.
Useful numbers. Clean interface. No spreadsheet required.
Built for quick strength estimates
You should not need a spreadsheet, a messy website, or a giant tracking app just to estimate your strength numbers.
One Rep Max Calculator is built for quick answers. Enter a weight and reps, get a clear estimate, and use it for training decisions. It is not trying to replace coaching, programming, or common sense. It is a simple tool for useful strength estimates.
It is useful for lifters estimating current strength, beginners learning training percentages, intermediate lifters planning working weights, garage gym lifters, coaches, and anyone who wants quick numbers without spreadsheet clutter.
Estimate your strength without overcomplicating it
Enter weight and reps. Get a useful strength estimate. Move on.
One Rep Max Estimate
Enter weight and reps to estimate your one-rep max quickly.
Percentage-Based Weights
See useful training weights based on your estimated max.
Clean Results View
Results are presented clearly so you can understand them quickly.
Built for Fast Use
Open the app, enter your numbers, get the estimate, and get back to training.
No Clutter
No social feed. No forced account. No bloated training platform wrapped around a calculator.
Calculator screens
A quick look at the real One Rep Max app screens.
Fast inputs for working sets.
Simple calculator flow. Save up to 5 estimated maxes.
Percentage-based weights for planning your next sets.
Available Soon
Launch details will be announced when the app is ready for release.
Quick training estimates
Enter a working weight and reps to estimate your max and review percentage-based training weights.
Built to stay local
✓ No account required
✓ No subscriptions
✓ No cloud sync
✓ Works offline
✓ Your data stays on your device
Questions, bugs, or ideas?
Questions, bug reports or feature requests?
Ready to calculate without the clutter?
One Rep Max Calculator is built to give lifters quick, useful strength estimates in a clean Android app. Get launch updates and we’ll let you know when it is ready.