Vertical Jump Calculator
Free vertical jump calculator. Measure your lower body power using Lewis, Harman, Sayers, and Johnson & Bahamonde formulas. Get peak power, average power, athletic level, and percentile estimates.
Body height improves accuracy for Johnson & Bahamonde formula
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Calculate Your Vertical Jump Power
Discover your lower body explosive power from your vertical jump. This calculator uses multiple scientifically validated formulas to estimate your peak and average power output, providing insight into your athletic performance and training progress.
How Is Jump Power Calculated?
Vertical jump power reflects your ability to generate force rapidly—a key component of athletic performance. Several equations have been developed by sports scientists to estimate power from jump height and body mass. Each formula uses different coefficients derived from research studies comparing jump performance to measured power output.
Lewis Formula (Average Power)
Power (W) = √4.9 × Mass (kg) × √Jump (m) × 9.81Why Measure Vertical Jump Power?
Track Athletic Progress
Monitor improvements in explosive power from strength and plyometric training programs.
Compare Performance
See how your power output ranks against athletes in basketball, volleyball, football, and other sports.
Talent Identification
Vertical jump is a key metric used by scouts and coaches to assess athletic potential.
Training Prescription
Use power data to design targeted training programs for improving explosiveness.
How to Use This Calculator
Vertical Jump Standards
Basketball Players
NBA prospects typically have vertical jumps of 70-90+ cm (28-35+ inches).
Volleyball Athletes
Elite volleyball players often achieve 65-85 cm (26-33 inches) vertical jumps.
General Fitness
Average adult males jump 40-50 cm (16-20 inches); females 30-40 cm (12-16 inches).
NFL Combine
Top performers at the NFL Combine reach 100+ cm (40+ inches).
Frequently Asked Questions
The Sayers formula is most widely cited in research for peak power. The Harman formula provides both peak and average power. Use Johnson & Bahamonde when you have accurate height data for improved precision.