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
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.
Based on the information you provided, the child's predicted
adult height is ' ".
Please note: Because your child is younger than 5 years old, this prediction may be inaccurate.
Please note: Your child weighs more than most children of the same gender and height in the same age group. Because your child is outside this normal range, this prediction is less likely to be accurate.
What is the Khamis-Roche method?
Dr. Khamis and Dr. Roche, working at Wright State
University, did a study of white American children that resulted in a formula
for predicting a child’s adult height. The formula uses a child's current age,
height, and weight and the average of the child's parents' heights. Their study
was published in 1994 in Pediatrics. The Khamis-Roche formula has been studied
only in white American children and is only an estimation of a child's adult
height. If a child has underlying health problems, including a syndrome that
might affect growth (Down syndrome, Prader-Willi syndrome, Laurence-Moon
syndrome, Bardet-Biedl syndrome, Turner syndrome, and certain other genetic
conditions), this calculation will be unreliable.
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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