Dunk Calculator
Calculate your vertical jump needed to dunk based on height, reach, and rim height.
Published by:
isCalculator Editorial Team
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How to use this tool?
Step 1: Enter your Height in inches (e.g., 70).
Step 2: Enter your Standing Reach in inches (e.g., 90). This is how high you can reach while standing flat-footed.
Step 3: Enter the Rim Height in inches (default is 120 for a standard hoop).
Step 4: Click Calculate Vertical Jump.
Result: The calculator shows the vertical jump height needed to dunk, calculated as Rim Height − Standing Reach.
All values must be in inches (imperial). Ensure your reach is less than the rim height.
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Frequently Asked Questions
The vertical jump needed is the difference between the rim height and your standing reach. For example, if the rim is 120 inches and your reach is 90 inches, you need a 30-inch vertical.
Standing reach varies with height and arm length. A typical standing reach for a 6-foot person is around 96 inches.
Yes, if you have a higher standing reach or you can palm the ball. The calculator gives the minimum vertical needed to touch the rim; for a dunk you may need a few extra inches.
