One-Rep Max Calculator

Calculate your one-repetition maximum for various exercises

Most accurate for 1-10 reps

Exercises

ExerciseWeightReps1RM
0 kg

Training Percentages

Barbell Row

Training Guidelines

  • 85-95%: 1-3 reps (Strength)
  • 75-85%: 4-6 reps (Power)
  • 65-75%: 6-12 reps (Hypertrophy)
  • 40-65%: 12+ reps (Endurance)

Training Tips

  • Always warm up properly
  • Use proper form for accuracy
  • Test 1RM every 8-12 weeks
  • Stay within safe intensity ranges

Frequently Asked Questions

1RM is the maximum weight you can lift for one repetition of an exercise with proper form.

1RM is calculated using various formulas based on the weight and reps you can perform.