Dunk Calculator

Calculate your vertical jump and dunk ability based on height and reach!

Vertical Jump Guide:
  • NBA Rim Height: 10 feet (120 inches)
  • Average Male Reach: Height + 8-10 inches
  • Good Vertical: 24-28 inches
  • Elite Vertical: 32+ inches
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Latest Updates & Tips

Improve Your Vertical Jump

Consistent plyometric training can increase your vertical jump by 3-5 inches in 8-12 weeks. Focus on box jumps, depth jumps, and squat jumps.

November 04, 2025

Proper Dunk Technique

The key to dunking isn't just vertical jump - it's timing, approach angle, and palm strength. Practice with a lower rim first to build confidence.

November 03, 2025

Measuring Standing Reach

Stand flat-footed against a wall and reach as high as possible. Mark the highest point - this is your standing reach, essential for calculating vertical jump.

November 02, 2025

NBA vs Street Rim Heights

Official NBA rims are exactly 10 feet (120 inches), but many park rims vary from 9'6" to 10'3". Always check rim height for accurate assessment.

November 01, 2025
Dunk Calculator Guides & Articles

Learn how to increase your vertical jump and achieve your dunking goals

Understanding Vertical Jump:
  • Standing Reach: Your arm length from floor when standing flat-footed with arm extended
  • Vertical Jump: The difference between standing reach and maximum jump reach
  • Rim Height: Standard NBA rim is 120 inches (10 feet) from the ground
  • Dunk Requirement: Your max reach (standing + vertical) must exceed rim height by 2-6 inches
Vertical Jump Benchmarks:
  • Beginner: 12-18 inches - Focus on basic strength training
  • Intermediate: 20-28 inches - Can touch or grab rim
  • Advanced: 30-36 inches - Can dunk with proper technique
  • Elite: 38+ inches - NBA-level athleticism
Read More Articles
Frequently Asked Questions

To dunk on a 10-foot rim, your maximum reach (standing reach + vertical jump) should be at least 122 inches. This gives you 2 inches above the rim to comfortably dunk the ball.

The average standing reach is approximately your height plus 8-10 inches. For a 6-foot person (72 inches), the standing reach is typically 90-94 inches.

With proper training, most people 5'10" or taller can develop the vertical jump needed to dunk. It requires consistent plyometric training, leg strength development, and explosive power exercises over 6-12 months.

Stand next to a wall and reach as high as you can (standing reach). Then jump and touch the wall at your highest point. The difference between these two measurements is your vertical jump height.

The best exercises include box jumps, depth jumps, squat jumps, Bulgarian split squats, and calf raises. Combine these with Olympic lifts like power cleans for maximum improvement.
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