Child Height Predictor

Have you ever wondered how tall your child will be when they reach adulthood? Although nobody can predict the future, with the help of some math and science, we can make a fairly accurate estimate of their final height. Our Child Height Predictor tool uses the Khamis-Roche method to provide you with a prediction of your child’s final height when they reach 18 years old, with a margin of error under 2 inches.



To use the tool, simply enter your child’s sex, age, and height in centimeters, and click the “Calculate” button. Please note that the Child Height Predictor works for children aged 2 and above, and the accuracy of the prediction may vary for exceptionally tall children or those who are already taller than both their parents.

It’s important to remember that the Child Height Predictor is intended to be a fun tool, and it does not guarantee that your child will reach the predicted height. If you’re concerned about your child’s growth and development, it’s always best to consult with their healthcare provider.

The Khamis-Roche method takes into account your child’s height, weight, and the average height of their parents, and uses ratios to calculate the predicted height at age 18. This method was developed in the 1990s, and it eliminated the need for X-rays to determine the child’s skeletal age, which is a measure of bone maturity.

If you’re interested in trying out other methods to predict your child’s height, there are a few you can try at home. One method is to double the child’s height at age 2 for boys or 18 months for girls, as their first growth spurt from baby to toddler accounts for roughly half of their adult height. Another method is the mid-parental method, which involves adding the height of both parents and dividing it by two, then adding or subtracting 5 inches for boys or 2.5 inches for girls.

Remember that these methods are not as accurate as the Child Height Predictor tool, and the margin of error could be as much as 4 inches.

Ultimately, the Child Height Predictor is simply a tool to provide you with an estimate of your child’s final height. Many factors can affect a child’s growth and development, and the prediction may not always be accurate. If you have any concerns about your child’s growth and development, it’s best to consult with their healthcare provider.