Vertical Jump Power Calculator
Peak and average power output from your vertical jump height.
Enter your values
Enter the vertical jump in cm.
Enter the body weight in kg.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Peak power (Sayers)
- 4,908 W
- Peak power per kg
- 61.34 W/kg
- Average power
- 2,847 W
- Take-off velocity
- 3.28 m/s
- Hang time
- 0.67 s
- Jump in inches
- 21.7 in
- Lewis reference
- 1,286 kgm/s equivalent
Working
- 160.7 x 55 + 45.3 x 80 - 2055 = 4,908 W
Quick answer
Jump height and bodyweight predict lower-body peak power. The Sayers equation is the standard field estimate for peak watts from a countermovement jump.
peak W = 60.7 x cm + 45.3 x kg - 2055
At a glance
| What it does | Peak and average power output from your vertical jump height. |
|---|---|
| Category | Fitness |
| Inputs needed | Vertical jump, Body weight |
| Main output | Peak power (Sayers) |
| Formula | peak W = 60.7 x cm + 45.3 x kg - 2055 |
| Cost | Free — no sign-up, no download |
How to use the Vertical Jump Power Calculator
- 1Measure a countermovement jump: standing reach subtracted from jump reach, or use a jump mat.
- 2Enter jump height and your bodyweight on the day.
- 3Track watts per kilo over a training block — it moves before jump height does.
Inputs explained
- Vertical jump(cm)
- Enter the vertical jump in cm.
- Body weight(kg)
- Enter the body weight in kg.
Worked example
Using the values the calculator loads with:
Inputs
- Vertical jump55 cm
- Body weight80 kg
Results
- Peak power (Sayers)4,908 W
- Peak power per kg61.34 W/kg
- Average power2,847 W
- Take-off velocity3.28 m/s
- Hang time0.67 s
- Jump in inches21.7 in
- Lewis reference1,286 kgm/s equivalent
- 60.7 x 55 + 45.3 x 80 - 2055 = 4,908 W
Frequently asked questions
Which jump test does this assume?
A countermovement jump with arm swing allowed, which is what the Sayers equation was validated against.
Why does bodyweight increase power?
Power is work over time, and moving a heavier body the same height takes more work. Watts per kilo is the fairer comparison between athletes.
What do I need to enter into the Vertical Jump Power Calculator?
Just 2 values: vertical jump, body weight. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Vertical Jump Power Calculator work out the answer?
Jump height and bodyweight predict lower-body peak power. The Sayers equation is the standard field estimate for peak watts from a countermovement jump. It applies the formula peak W = 60.7 x cm + 45.3 x kg - 2055 and shows the working so you can check each step by hand.
Is the Vertical Jump Power Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.