Calculating your vertical jump height is straightforward once you know the Vertical Jump formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Vertical Jump Calculator.
What is Vertical Jump?
The Vertical Jump calculation tells you your vertical jump height from a few simple inputs. The figure you are solving for here is the vertical jump height.
The Vertical Jump formula
The core formula is:
Vertical jump height = 9.8 × Hang time ^ 2 ÷ 8 × 39.3701Here is what each input means:
- Hang time — a value measured in seconds. Example: 0.5 seconds.
How to calculate it step by step
- Write down the hang time (for example, 0.5 seconds).
- Apply the formula above to get your vertical jump height.
- Double-check the result with the Vertical Jump Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Hang time | 0.5 seconds |
| Vertical jump height | 12.1 |
| In centimetres | 30.6 |
With hang time of 0.5 seconds, the vertical jump height works out to 12.1.
Example 2
With hang time of 1 seconds, the vertical jump height works out to 48.2.
| Result | Value |
|---|---|
| Vertical jump height | 48.2 |
| In centimetres | 122.5 |
Example 3
With hang time of 2.5 seconds, the vertical jump height works out to 301.4.
| Result | Value |
|---|---|
| Vertical jump height | 301.4 |
| In centimetres | 765.6 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Vertical Jump Calculator does it instantly, for free, with the formula and a worked example built in.
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