One-Rep Max Calculator
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One-Rep Max Calculator

Estimate 1RM using multiple formulas

📖 One-Rep Max Calculator

Choose Epley, Brzycki, or Lander formula to extrapolate 1RM from submaximal sets.

📊 Result

💡 Tips & Information

  • Use heavier loads with fewer reps for more accurate estimates.
  • Compare formulas to gauge consistency across lifts.
  • Lower-body lifts often yield higher reps at a given % than upper-body lifts.
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