Child's Estimated Adult Height Calculator

By Lambert, J.G. M.D.

Child's Estimated Adult Height Calculator

Curious about how tall your child will be when he grows up? A child’s adult height is determined by many things, including inherited factors, gender, nutrition, and health status during childhood. Although a child’s adult height cannot be predicted with absolute certainty, a number of methods are available for estimating how tall a child will grow to be. One method requires a bone age X-ray. Another method, the Khamis-Roche method used in this calculator, is based on a child’s gender, height, and weight and the height of both parents.

This calculator is not intended as a substitute for professional health care. Always consult with a health care provider for advice concerning your child’s health.

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Khamis HJ, Roche AF. "Predicting adult stature without using skeletal age: the Khamis-Roche method." Pediatrics. Vol. 94. Oct. 1994:504-7.

This calculator is not intended to replace the evaluation of a healthcare professional.

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