Jump Height Calculator
Time both feet are off the ground
A jump height calculator converts hang time (time both feet are off the ground) into maximum jump height, using projectile motion physics. It is used to measure athletic explosive power.
- 1Physics: max height = g × (hang time / 2)² / 2 where g = 9.81 m/s²
- 2Or: max height = hang time² × g / 8
- 3Flight time is typically measured by a contact mat or slow-motion video
Hang time 0.6 seconds=44 cm jump height0.6² × 9.81 / 8 = 0.441 m
| Jump height | Level |
|---|---|
| < 40cm | Below average |
| 40–55cm | Average |
| 55–65cm | Good |
| 65–76cm | Very good (elite sport) |
| > 76cm | Exceptional |
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Fun Fact
Michael Jordan's vertical leap was measured at 109 cm (43 inches) at the NBA combine — equivalent to a hang time of about 0.94 seconds.
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