Age of Peak Height Velocity Calculator
Peak Height Velocity (PHV) is the period during which a young athlete experiences their fastest rate of growth.
Knowing where an athlete sits in their growth cycle helps coaches and practitioners tailor training appropriately—improving performance, reducing injury risk, and ensuring long-term development.
Use the calculator below to determine PHV.
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How to Measure
How to Measure
To get accurate results from the PHV calculator, please follow these steps:
1. Standing Height (cm)
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Stand tall with heels together, back against a wall or stadiometer.
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Look straight ahead, with eyes level (not looking up or down).
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No shoes. Hair should be as flat as possible.
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Measure from the floor to the top of the head.
2. Sitting Height (cm, measured on box/chair)
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Sit upright on a solid box or chair with a flat seat.
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Feet flat on the floor, back straight, looking straight ahead.
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No shoes.
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Measure from the floor to the top of the head.
3. Box/Chair Height (cm)
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Measure the height of the same box/chair used for the sitting height.
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Measure from the floor to the top of the seat surface.
4. Body Mass / Weight (kg)
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Use a digital scale if possible.
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Measure in light clothing, without shoes.
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Enter the value in kilograms.
Tip: For best accuracy, measurements should be taken by the same person, using the same equipment, each time.
Please scroll down for results after clicking submit.
Peak Height Velocity (PHV) Calculator
Enter the athlete’s details below to estimate maturity offset and age at Peak Height Velocity (PHV). This tool is for educational and training planning purposes and is not a medical assessment.
Results
Chronological age at time of measurement: years
Estimated maturity offset: years from PHV
Estimated age at PHV: years
Note: All calculations reflect the athlete’s status at the time of measurement, not today’s date.
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