Estimated one-rep max

Estimate a lifting one-repetition maximum from a submaximal set. Free, simple, and right here in your browser.

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A useful little guide

How to use estimated one-rep max

Estimate a lifting one-repetition maximum from a submaximal set. This browser tool shows the inputs, assumptions and resulting output so you can use it for a specific everyday task.

  1. Enter your own values or choose a supported file.
  2. Adjust the options and run the tool.
  3. Review the result, then copy, export or save it when available.
A real use case

Try this next

Compare Epley and Brzycki estimates for a set of 60 kg lifted five times.

A detail to keep in mind

These equations give estimates, not a safe lifting prescription. Technique, fatigue and individual training history change performance.

Questions, answered.

Is estimated one-rep max free to use?

Yes. This tool is part of Nepocore’s free browser toolkit. There is no paid tier, file-download gate or application account required.

What should I check before using the result?

These equations give estimates, not a safe lifting prescription. Technique, fatigue and individual training history change performance.

Does this tool upload my files or text?

The tool processes its input in your browser. File contents and text are not sent to a processing server. See the privacy page for local storage and hosting details.

A little more in your toolkit

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