Bench Max Calculator: Calculate Your 1-Rep Max & PR (Kg/Lbs)

Discover your bench press strength instantly with our bench max calculator. Therefore, estimate 1RM safely using science-backed formulas—perfect for programming and progress tracking.

Why Calculate Bench Max?

Your bench 1RM benchmarks upper body power. Moreover, it sets training percentages for hypertrophy (70-85% 1RM) or strength (85-95%). For example, elite lifters hit 1.5-2x bodyweight. Additionally, avoid injury by submax testing.​

Top 1RM Formulas for Bench Press

Our tool averages these validated equations:​

Epley: 1RM = Weight × (1 + Reps/30)​

Brzycki: 1RM = Weight × 36 / (37 – Reps)​

Lombardi: 1RM = Weight × Reps^0.10​

Best for 3-12 reps (±5% accuracy).​

Example: 200 lbs × 6 reps = ~235 lbs 1RM (Epley).​

Bench Press Percentages Table

% of 1RM	Reps	Training Focus
95-100%	1-2	Max Strength ​
85-95%	3-5	Power
75-85%	6-8	Strength/Hypertrophy
60-75%	8-12	Hypertrophy ​

Therefore, scale workouts precisely.

How to Use the Bench Max Calculator

1. Input weight (lbs/kg) and reps (3-12 reps optimal).
2. Choose units; get 1RM across formulas.
3. View percentages and PR history.​

Safety First: Warm up thoroughly; retest every 4 weeks.

Calculate your bench max today—crush your PR!