Strength Level Calculator
Calculate your one-rep max (1RM) and strength level for the bench press, squat, deadlift, and overhead press based on the number of reps you can perform at a given weight. Uses the Epley formula.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to use the Strength Level Calculator
- Select Exercise: Choose from Bench Press, Squat, Deadlift, or Overhead Press.
- Enter Weight: Input the weight you lifted (in kilograms). Must be greater than 0.
- Enter Reps: Input the number of reps you performed (1 to 30).
- Enter Body Weight: Input your body weight (in kilograms). Must be greater than 0.
- Click "Calculate": The calculator estimates your 1RM (one-rep max) using the formula:
1RM = weight × (1 + reps / 30). - Interpret Results:
- Estimated 1RM: Your predicted maximum lift for one rep.
- Strength Level: Based on the ratio of 1RM to body weight:
- Beginner (ratio < 1.0)
- Novice (1.0–1.49)
- Intermediate (1.5–1.99)
- Advanced (2.0–2.49)
- Elite (2.5+)
Note: All values must be in kilograms. Use metric system only.
Previous Results
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Frequently Asked Questions
The one-rep max is estimated using the Epley formula: 1RM = weight × (1 + reps / 30). This provides a reliable estimate for most people.
Strength levels are based on the ratio of your estimated 1RM to your body weight: Beginner (<1.0), Novice (1.0-1.49), Intermediate (1.5-1.99), Advanced (2.0-2.49), Elite (2.5+).
This calculator is optimized for the bench press, squat, deadlift, and overhead press. Using it for other exercises may not yield accurate results.
