Dunk Calculator
Calculate your vertical jump requirements to dunk a basketball based on your height and arm length.
Dunk Requirements
0
Inches of Vertical Jump Needed
Your Standing Reach:
0
Dunk Target Height:
0
Difference:
0
Dunk Ability Assessment
Based on your vertical jump requirements compared to average athlete capabilities.
How to Use This Calculator
- Enter your height in feet and inches
- Enter your standing reach (fingertip to floor when standing straight)
- Select your dunk target height (standard is 120" for 10ft rim + ball clearance)
- Click "Calculate Vertical Needed" to see your results
Understanding the Calculation
The formula is simple: Vertical Needed = Dunk Height - Standing Reach
This gives you the minimum vertical leap required to get your hand high enough to dunk.
Dunk Height Reference
- Standard Dunk (120"): 10ft rim (120") plus about 6" of ball clearance
- Grab Rim (115"): Just touching the 10ft rim
- Women's Dunk (105"): 8.5ft rim (102") plus ball clearance
Vertical Jump Benchmarks
| Vertical | Ability Level |
|---|---|
| 10-15 inches | Beginner |
| 16-20 inches | Average athlete |
| 21-25 inches | Above average |
| 26-30 inches | Excellent (dunk potential) |
| 30+ inches | Elite (consistent dunker) |