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Strength Calculator

Calculate your one rep max (1RM)

Input Parameters
Enter your working weight and repetitions
Results
Your One Rep Max (1RM)
Enter parameters and click calculate

Learn More About 1RM

Understanding one rep max and how to use it effectively in your training

Understanding One Rep Max (1RM)

One Rep Max (1RM) is the maximum amount of weight you can lift for a single repetition of an exercise while maintaining proper form.

  • Helps track strength progress over time
  • Allows for proper training program design
  • Enables accurate loading percentages for different training goals
  • Useful for comparing strength levels across different lifts and individuals