ABOUT US
Simple tools for better lifting decisions
One Rep Calculator helps recreational lifters estimate a training max without unnecessary complexity.
Whether you're working toward your first bench press milestone or keeping track of a familiar lift, your numbers should be easy to understand. We built this site to put the calculator first, make the math transparent, and help you plan the next workout.
We prefer useful tools and honest limitations over exaggerated claims. You can calculate without signing up, and your entered lift data stays in the browser unless you choose to copy it elsewhere.
Strength starts with a good baseline.
Calculate a reliable starting estimate and build your next workout from there.