How high do you have to jump to dunk?

How the Dunk Calculator works:

Step 1:
Enter your standing reach. If you don't know your standing reach you can also use your height and the Dunk Calculator will estimate your standing reach using the standing reach calculator .
Step 2:
Put in how high you need to reach above the rim to be able to dunk. Six inches is the default value.
Step 3:
The vertical jump calculator will tell you the jump height you need to touch the rim, to dunk or throw down the Vince Carter 360° windmill.
Step 4:
Use the visual analysis graph and find out more about hang time, speed of dunk and take-off velocity

Enter your personal data:

Do you know your standing reach?
Choose Measurement System:
Your Height:
ft in
Estimated Standing Reach:
ft in
Height of Rim:
ft in
Extra Reach for Dunk:
in
Your Height:
cm
Estimated Standing Reach:
cm
Height of Rim:
cm
Extra Reach for Dunk:
cm
This is How High You Need to Jump to Dunk:
To touch the rim you need a vertical jump of:
 cm
To dunk a basketball you need to jump:
 cm
To do a 360° Windmill like Vince Carter you need a vertical jump of:
 cm
To touch the rim you need a vertical jump of:
 inches
To dunk a basketball you need to jump:
 inches
To do a 360° Windmill like Vince Carter you need a vertical jump of:
 inches

Visual Analysis of Vertical Jump:

What do you want to analyze?
Characteristics of the Jump:
Height of Jump:
Hang Time:
Effective Hang Time:
Speed of Dunk:
Takeoff Verlocity:
Height of Jump:
Hang Time:
Effective Hang Time:
Speed of Dunk:
Takeoff Verlocity:
Plane of Flight:

Jump Height

To Touch Rim

To Dunk

Interesting facts when analyzing Vertical Jumps :

  • When you are asking yourself: "How tall do I have to be to dunk?" - you are asking the wrong question! Wingspan is also very important as it is a big part of the standing reach.
  • If you have a vertical jump of 100cm you will be spending more than 50% of the hang time above 72cm. This explains why it oftens seams as if a jumper is "stopping" mid air.
  • If you can jump just high enough to squeeze in dunks right now, then an improvement of only a few inches can have a huge impact. For example if you need a jump height of 30 inches to dunk and you can jump exactly 30 inches you have an effective hang time of 0.39 seconds. This will be the fastest time in which you can complete a dunk. If you improve your vertical jump by only 2 inches your effective hangtime increases by 30% to 0.51 seconds giving you much more time in the air for stuff like windmills. The speed of the dunk becomes much faster as you can complete a dunk within 0.31 seconds making you much harder to block!
  • While small dunkers have to train a lot more to make a dunk they also have the advantage of great hang time.