Bench 1RM Formula:
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This calculator estimates your one-repetition maximum (1RM) for bench press based on the number of push ups you can perform and your body weight. It provides a practical way to estimate strength without actually performing a maximal bench press attempt.
The calculator uses the following equation:
Where:
Explanation: The equation accounts for the relationship between push up endurance and bench press strength, adjusted for body weight.
Details: Knowing your 1RM is crucial for designing strength training programs, tracking progress, and determining appropriate training weights.
Tips: Enter your maximum number of push ups (performed with good form) and your current body weight in kilograms. Both values must be greater than zero.
Q1: How accurate is this estimation?
A: While useful for estimation, actual 1RM may vary by ±10-15% depending on individual factors like muscle fiber composition and training specificity.
Q2: Should I test my actual 1RM?
A: For competitive lifters or precise programming, actual 1RM testing (with proper safety precautions) is recommended.
Q3: Does push up form affect the calculation?
A: Yes, use strict form - full range of motion, chest to floor, and full extension at the top for accurate results.
Q4: Can I use this for other exercises?
A: No, this formula is specific to the relationship between push ups and bench press.
Q5: How often should I recalculate?
A: Recalculate every 4-8 weeks as your strength and body weight change.