One Rep Max Calculator

Result

Estimated One Rep Max: 116.7 kg

Estimated Max Reps

RepetitionsWeight (kg)% of 1RM
1112.997%
2109.494%
3106.191%
4102.988%
5100.086%
697.283%
794.681%
892.179%
989.777%
1087.575%
1185.473%
1283.371%
1381.470%
1479.568%
1577.867%

% of 1RM

% of 1RMWeight (kg)Repetitions
100%116.71
95%110.81
90%105.03
85%99.25
80%93.37
75%87.510
70%81.712
65%75.816
60%70.020
55%64.224
50%58.330

About One Rep Max

This calculator estimates your one rep max (1RM) using Epley, Brzycki, or Lombardi formulas based on the weight lifted and number of repetitions (1-10). Use it to design workout programs, track strength progress, and set training goals. Always prioritize safety and proper form.

Training Tips

  • Warm Up: Prepare muscles to prevent injury.
  • Use a Spotter: Ensure safety when lifting heavy weights.
  • Rest Adequately: Allow 2-5 minutes between heavy sets.
  • Vary Workouts: Use supersets or pyramid sets to avoid plateaus.

1RM Training Tips

  • Start with a weight you can lift for 5-10 reps.
  • Use proper form to avoid injury.
  • Train at 80-100% of 1RM for strength gains.

Strength Training Guidelines

% of 1RMRepsGoal
50-60%3-5Explosive Power
70%10-15Muscle Endurance
70-80%7-12Muscle Growth
80-100%1-3Strength