Bench Press Max Calculator
Estimate your one-rep max (1RM) for 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 Bench Press Max Calculator
- Enter the weight you lifted (in kg or lbs) into the "Weight Lifted" field. Use a positive number (e.g., 80).
- Enter the number of reps you performed (between 1 and 30) into the "Number of Reps" field.
- Click "Calculate 1RM" to get your estimated one-rep max.
- Read the result displayed in the same unit you entered (kg or lbs). The formula used is shown below the result.
Note: This calculator uses the formula 1RM = weight × (1 + reps/30). For 1 rep, the result equals the weight entered.
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Frequently Asked Questions
The Epley formula estimates your one-rep max (1RM) as: 1RM = weight × (1 + reps/30). It's a commonly used method for predicting max strength.
The Epley formula provides a reasonable estimate, but actual 1RM can vary based on factors like fatigue, technique, and muscle fiber composition. Use it as a guide.
Yes, the Epley formula can be applied to any weightlifting exercise, but it is most commonly used for bench press, squat, and deadlift.
