Vertical Jump Power Calculator (Sayers Equation)
Enter your jump height and body weight to estimate your peak power output.
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Vertical Jump Power Calculator (Sayers Equation) by TheCalcTools
How the Vertical Jump Power Calculator (Sayers Equation) works
Sayers and colleagues measured jump height, body mass and peak power with a force plate in a large group of athletes and fitted a regression equation. It estimates peak power from a countermovement jump.
Use the best of three jumps from a standing start, measured with a jump mat, app or wall reach. The equation is an estimate with an error of a few hundred watts.
The formula
Worked example
Using the default values shown in the calculator:
| Vertical jump height | 50 |
|---|---|
| Body weight | 75 |
- 60.7 × 50 + 45.3 × 75 − 2055 = 4,378 W.
- That is 58.4 W per kg.
Result:
| Peak power (Sayers) | 4,378 |
|---|---|
| Peak power per kg | 58.4 |
| Jump height in inches | 19.7 |
Frequently asked questions
What is a good vertical jump?
For adults, roughly 40 to 50 cm is average for men and 30 to 40 cm for women; elite basketball and volleyball players often exceed 70 cm.
Sources and further reading
- Sayers SP et al. (1999) Cross-validation of three jump power equations. Med Sci Sports Exerc 31(4):572-577
- Wikipedia: Vertical jump
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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.