Bench Press Calculator (1RM)

Estimate your bench press one-rep max.

Estimated 1RM 93.333

Estimated 1RM 205.76

Formula: 1RM = weight × (1 + reps ÷ 30)

Step-by-step with your numbers:

1. Values used:

2. Weight lifted = 80

3. Reps performed = 5

5. Estimated 1RM = 93.333

6. Estimated 1RM = 205.76

Did we solve your problem today?

Estimate the most you could bench for a single rep from a multi-rep set.

The math behind it

The Epley formula: 1RM = weight × (1 + reps ÷ 30). It's most accurate for sets under ~10 reps.

80 kg for 5 reps → about 93 kg 1RM.

Should I test a true 1RM?

Estimating is safer; only attempt a true max with a spotter.