Vertical Jump Calculator
Whether you are an aspiring basketball player, a volleyball enthusiast, or a track athlete, your vertical jump is one of the most significant indicators of explosive power. But many athletes struggle with the basics: how to calculate vertical jump accurately and what those numbers actually mean for their performance.
The Fundamental Formula
Calculating your vertical jump is mathematically simple, but it requires precision in measurement. The standard formula used by the NBA Combine and athletic trainers worldwide is:
Vertical Jump = Maximum Reach Reach - Standing Reach
By subtracting your standing reach from the highest point you can touch during a jump, you isolate the distance your body actually traveled through the air.
Step-by-Step Measurement Guide
1. Measuring Your Standing Reach
To get an accurate baseline, stand flat-footed next to a wall or under a Vertec device. Reach as high as possible with one hand. Do not lift your heels off the ground. Mark the highest point your middle finger touches. This is your "Standing Reach."
2. Measuring Your Max Jump Reach
From a stationary position or a small step (depending on whether you are measuring a "standing vertical" or a "running vertical"), jump as high as you can and touch the highest point possible on the wall or the vanes of the Vertec. It is often helpful to have a coach or friend watch to ensure the mark is accurate.
3. The Calculation
Take the measurement from Step 2 and subtract the measurement from Step 1. For example, if your standing reach is 90 inches and your max reach is 118 inches, your vertical jump is 28 inches.
Common Methods for Testing
- The Wall Test: The simplest method. Use chalk on your fingertips to mark a dark-colored wall. Jump and touch the wall at the peak of your flight.
- The Vertec: The gold standard for athletic testing. It consists of a pole with several horizontal vanes that rotate when touched, providing a clear, physical record of your reach.
- Jump Mats: These measure the "hang time" (the duration you are in the air) and use a physics formula (d = 0.5 * g * t²) to calculate height.
- Wearable Sensors: Modern technology allows sensors on waistbands to track acceleration and displacement to estimate vertical height.
What is a "Good" Vertical Jump?
Vertical jump height varies significantly by age, gender, and sport. Here are some general benchmarks for adult males:
- Average: 16–20 inches
- Above Average: 24–28 inches
- Elite: 30–35 inches
- Professional/World Class: 38+ inches
How to Improve Your Vertical
If your calculation isn't where you want it to be, focus on two primary areas: Strength and Rate of Force Development (RFD).
Strength Training
The foundation of a high jump is the ability to push against the ground. Exercises like back squats, deadlifts, and lunges build the raw force capacity in your glutes, quads, and hamstrings.
Plyometrics
Strength alone isn't enough; you must be able to apply that strength quickly. Plyometric exercises like box jumps, depth jumps, and broad jumps train your nervous system to fire rapidly, turning your strength into explosive power.
Conclusion
Learning how to calculate vertical jump is the first step in any serious athletic training program. By establishing an accurate baseline today, you can track your progress as you implement strength and conditioning routines. Remember, consistency is key—measure once every 4 to 6 weeks to see the results of your hard work.