Max Bench Calculator
Estimate your one-rep max (1RM) for the bench press based on the weight and reps you can perform. Uses the Epley formula.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Max Bench Calculator
This calculator estimates your one-rep max (1RM) for bench press using the Epley formula. It works with pounds (lbs) only.
- Enter Weight Lifted: Type the weight you lifted (in pounds) into the "Weight Lifted" field. Must be greater than 0.
- Enter Number of Reps: Type the number of reps you completed (between 1 and 30) into the "Number of Reps" field.
- Calculate: Click the "Calculate 1RM" button.
- View Result: Your estimated one-rep max appears below, along with the formula breakdown.
Example: If you bench 225 lbs for 5 reps, your estimated 1RM is 262.5 lbs.
Tip: Use a weight you can lift for 1–10 reps for best accuracy.
Previous Results
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Frequently Asked Questions
Your one-rep max is the maximum amount of weight you can lift for a single repetition of an exercise.
The Epley formula is a well-established method for estimating 1RM, but actual max may vary due to factors like fatigue and technique.
Yes, the Epley formula can be applied to any major lift, but it's most accurate for exercises like bench press, squat, and deadlift.
