One-Rep Max (1RM) Calculator
Calculate estimated one-rep max using clear inputs and a documented method. Save or copy your results, with straightforward guidance.
Tool category
Estimated One-Rep Max
Estimate one-rep maximum from a weight and repetition test.
- 1 tool
- Free, no sign-up
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How the tools work
- The method is shown
Every tool explains its formula, units, examples and limits.
- Results to take away
Copy a result or download it as a text file.
- Free to use
No account and no sign-up are needed.