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Estimated 1 RM Calculator

Estimated 1RM


USE THIS CALCULATOR TO FIGURE YOUR ESTIMATED 1RM

  • A 1RM is the maximum weight (poundage) that you can lift 1 time (1 repetition).
  • The 1RM can be actual or theoretical/estimated.
  • The calculator below will find the estimated 1RM based upon a formula that uses the repetitions and the weight lifted during the exercise.
  • This process will provide you your 1RM without actually performing an actual one repetition maximum.
  • This process is safer and a quicker way to find your 1RM.
   Enter the Repetition Competed
   Enter Weight used/lifted

Your estimated 1RM =

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