One Rep Max Calculator

Calculate your one rep max for weightlifting

Calculate your 1RM (One Rep Max) and view percentage breakdowns based on weight lifted and reps.

Weight Lifted (kg / lbs)

Repetitions

Estimated 1 Rep Max

117

Epley: 117 | Brzycki: 113

Percentage Breakdown

Percentage

Rep Range

Weight

100%

1 Rep

117

95%

2-4 Reps

111

90%

2-4 Reps

105

85%

5-8 Reps

80%

5-8 Reps

75%

9-12 Reps

70%

9-12 Reps

One Rep Max Calculator

Calculate your one rep max for weightlifting

One Rep Max Calculator

Calculate your 1RM (One Rep Max) and view percentage breakdowns based on weight lifted and reps.

Weight Lifted (kg / lbs)

Repetitions

Estimated 1 Rep Max

117

Epley: 117 | Brzycki: 113

Percentage Breakdown

Percentage

Rep Range

Weight

100%

1 Rep

117

95%

2-4 Reps

111

90%

2-4 Reps

105

85%

5-8 Reps

80%

5-8 Reps

75%

9-12 Reps

70%

9-12 Reps