Vertical Jump Power Calculator
Estimate peak and average lower-body power from vertical jump height and body mass using the Sayers equation.
Peak Power (Sayers)
4,908 W
Peak Power (Sayers) vs Vertical Jump Height
Vertical Jump Power Estimation
The vertical jump is a standard test of lower-body explosive power. The Sayers equation converts jump height and body mass into peak power.
Sayers Equation
Peak Power (W) = 60.7 x Jump Height (cm) + 45.3 x Body Mass (kg) - 2055
This regression equation was developed by Sayers et al. (1999) and validated against force plate measurements. It is one of the most widely used field-test power equations in sports science.
Example Calculation
An 80 kg athlete with a 55 cm vertical jump.
- 01Peak power = 60.7 x 55 + 45.3 x 80 - 2055
- 02= 3,338.5 + 3,624 - 2,055
- 03= 4,907.5 W (approximately 4,908 W)
- 04Power per kg = 4,908 / 80 = 61.3 W/kg
- 05Jump height = 55 / 2.54 = 21.7 inches
Frequently Asked Questions
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