Bench Press Calculator
The bench press is one of the most popular measures of upper-body strength. Knowing your estimated one-rep max (1RM) lets you structure your training with precision — whether your goal is raw strength, muscle growth, or muscular endurance. Rather than risking injury by attempting a true maximum, this calculator estimates your 1RM from a submaximal set using two well-validated formulas, then translates that estimate into a full training load table across all major intensity zones.
Quick Answer
The average untrained male bench presses roughly 135 lbs (61 kg); the average untrained female roughly 65 lbs (29 kg). Intermediate male lifters typically bench 185–225 lbs; intermediate females 95–120 lbs. Your estimated 1RM is calculated from a set you can perform for 2–10 reps using the Epley formula: 1RM = weight × (1 + reps ÷ 30).
These results are estimates based on general formulas and are not a substitute for professional medical advice. Consult a healthcare provider before making health decisions.
How the Formula Works
Load the bar with a weight you can press for 2–10 reps with strict form. Record the weight used and the exact number of reps completed.
weight = load pressed, reps = repetitions completedApply the Epley formula: multiply the weight by the quantity one plus the number of reps divided by 30.
1RM (Epley) = weight × (1 + reps ÷ 30)Apply the Brzycki formula: multiply the weight by 36 divided by the quantity 37 minus the number of reps.
1RM (Brzycki) = weight × (36 ÷ (37 − reps))Average the two estimates to produce a balanced 1RM prediction.
Average 1RM = (Epley 1RM + Brzycki 1RM) ÷ 2Multiply your average 1RM by each training percentage to generate working weights for every intensity zone.
Working weight = Average 1RM × (percentage ÷ 100)
How to Use Your Training Load Table
Use the training load table to match your working weight to the right rep range and training goal. Working at 90–100% of your 1RM for 1–3 reps builds maximal strength and recruits the most motor units. The 80–89% range for 3–6 reps also develops strength with slightly more volume. The 70–79% range for 6–12 reps is the primary hypertrophy zone, where time under tension drives muscle growth. Dropping to 60–69% for 12–20 reps shifts the emphasis to muscular endurance. Anything below 60% is appropriate for warm-up sets or very high-rep conditioning work.
Limitations
- Formula accuracy is highest when reps fall between 2 and 10. Estimates from high-rep sets (15+) carry more error.
- The formulas assume all reps were taken to or very near muscular failure. Stopping well short of failure will underestimate your true 1RM.
- Individual differences in muscle fiber distribution, tendon length, and leverages mean actual maxes can vary by 5–15% from the estimate.
- Fatigue, sleep quality, nutrition status, and caffeine intake all influence performance on a given day and can shift results.
- Arch position, grip width, and use of a pause or touch-and-go technique affect the load that can be lifted and are not captured by the formula.
Frequently Asked Questions
How do I use my bench press 1RM estimate to write a training program?
What is a good bench press for my body weight?
Which formula is more accurate — Epley or Brzycki?
How often should I test my bench press max?
Can I use this calculator for the close-grip bench press or incline press?
See how your bench press compares to strength standards for your body weight
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