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One Rep Max Calculator by Online Tool Base

Strength Limit. The One Rep Max (1RM) Calculator at Online Tool Base estimates the maximum weight you can lift for a single repetition based on your reps with lighter weights.

Safety First

onlinetoolbase.online prevents injury:

  • Estimate: Test limits without attempting dangerous heavy lifts.
  • Formulas: Uses Epley and Brzycki methods.

How to Use

  1. Enter Weight Lifted.
  2. Enter Reps Performed.
  3. Calculate 1RM.

Build strength with the One Rep Max Calculator from Online Tool Base.