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Choose your rep range and enter max lift to get percentages of your 1RM (1RM = 1 Rep Max Lift)

kg/lb
Percent of 1RMEstimated Weight95%-90%-85%-80%-75%-70%-65%-
%

Estimate max → Calculate percentages → Train

  • Estimate your max lifts at different rep ranges using the Rep Max calculator
  • Calculate training weights using common 1RM percentages
  • Use those numbers to plan and execute your training

Made for: strength enthusiasts, weightlifters, powerlifters, functional fitness and hybrid athletes.

Planning your Quarterfinals strategy? Try the WOD Execution Planner →

1RM calculations use the Brzycki formula: 1RM = weight × (36 / (37 - reps))