Sports

Dunk Calculator

Find the vertical jump needed to dunk a basketball.

Standing reach

Rim height

Clearance to dunk

Calculated Output

Required vertical jump 80

Required vertical jump 31.496

Formula: jump = rim + clearance − standing reach

Step-by-Step Breakdown

1. Values used:

2. Standing reach = 240

3. Rim height = 305

4. Clearance to dunk = 15

6. Required vertical jump = 80

7. Required vertical jump = 31.496

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The math behind it

required jump = rim height + clearance − standing reach. A standard rim is 305 cm (10 ft).

240 cm reach, 305 cm rim, 15 cm clearance → 80 cm vertical needed.

What's a good clearance?

About 15 cm (6 in) lets you get your hand over the rim to dunk cleanly.