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One Rep Max (1RM) Calculator Spreadsheet

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Knowing your one rep max is a crucial step for starting any program based on one rep max percentages. Unfortunately, many popular novice programs don’t  have the lifter finding a one rep max, instead operating in higher rep ranges.

This spreadsheet allows the user to input 1-10RM (e.g. a 5RM) in order to estimate a 1RM.

Use this spreadsheet in 2 easy steps:

  1. Input the weight lifted
  2. Input the number of reps

And you’re ready to lift!

1 Rep Max Calculator Spreadsheet

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About Kyle Risley

Kyle Risley founded Lift Vault in 2016 to make finding great powerlifting programs easier. Since then, the site has grown to include hundreds of programs for strength, bodybuilding, Olympic weightlifting, and more. He currently lives in Massachusetts and continues to compete in powerlifting.