Dunk Calculator

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Terminology

• Standing Reach: The maximum height you can touch standing flat-footed, arms extended.
• Dunk Requirement: The vertical distance needed to reach the rim: Rim Height − Standing Reach.
• Vertical Jump: The height you can elevate from a standstill.
• Dunk Reach: Your Standing Reach plus Vertical Jump.

How It Works

1. Calculate Standing Reach using height and wingspan.

2. Compute Dunk Requirement: Rim Height (10 ft / 305 cm) − Standing Reach.

3. Estimate Vertical Jump: 50% of wingspan.

4. Determine Dunk Reach: Standing Reach + Vertical Jump.

If Vertical Jump ≥ Dunk Requirement, you can dunk.

Also Use Our Other Calculators

FAQs

1. What rim height is used?

Standard basketball rim height is 10 ft (305 cm).

2. How much vertical to dunk at 6 feet?

At 6 ft tall (72 in) with an average standing reach of ~96 in, you need approximately 24 in vertical to reach a 120 in rim.

3. What is your vertical if you can touch rim at 5'8"?

If your standing reach at 5'8" (68 in) is ~90 in and you can touch the 120 in rim, your vertical jump is roughly 30 in.

4. Can you dunk at 6'2"?

A 6'2" (74 in) player with a 98 in standing reach needs a 22 in vertical jump to dunk.

5. How high do you have to jump to dunk at 6'2"?

For 6'2" with average reach, about 22–24 in vertical is required to clear the rim.

6. Average standing reach by height?

Average standing reach is approximately 1.33× height. For example: 6'0" height → ~96 in reach; 5'8" → ~90 in reach.

7. Can I input my actual vertical jump?

Yes. Replace the estimated jump with your measured vertical for more accuracy.

8. Why use wingspan?

Wingspan correlates with reach and jumping mechanics, improving Standing Reach estimates.

9. Is the 50% wingspan jump accurate?

It’s an approximation; individual training and genetics will affect actual jump height.

10. Why include both imperial and metric?

To accommodate users worldwide and ensure precise measurements.