Question 1

How do I measure my vertical jump at home?

Accepted Answer

Stand flat-footed and note the highest point you can reach (standing reach). Then jump as high as you can and mark the highest point you touch (jump reach). Your vertical jump is simply jump reach minus standing reach.

Question 2

What is a good vertical jump?

Accepted Answer

For men, 20–24 inches is average, 25–30 is good, 31–35 is excellent, and 36+ is elite (college/pro athlete territory). For women, averages run about 4–6 inches lower across the same tiers.

Question 3

How tall do you need to be to dunk?

Accepted Answer

A standard rim is 10 feet (120 inches) high. You typically need a jump reach of about 120–126 inches (6–12 inches above the rim to control the ball). This calculator shows your estimated dunk reach so you can see how close you are.