How tall your kid will be

For many parents, though, having a child on the smaller side can be unnerving. According to the World Health Organization growth chart, which has been adapted for Canada, the range between a four-year-old boy at the third percentile and one at the 97th percentile is 16 centimetres or just over half a foot.

If you consider that there will also be a range of ages in a class, some kids are bound to tower over others. For the most part though, how tall your kid will end up is based on genetics. That said, when your kid grows into their adult height can vary. Another red flag is if their weight is at a much higher percentile than their height, which could indicate a thyroid issue, says Heard.

Sometimes a condition is first noticed because of shortness, such as Turner syndrome, where a female is missing or partially missing an X chromosome. Only risk takers, moreover, would want to bet on that number.

To arrive at 95 percent confidence, you need to expand out from a precise prediction to a range—5 feet 10 inches to 6 feet 7 inches. That is, anywhere from just a touch taller than average to not out of place on a professional basketball court. Even at the most predictive point in childhood—age 4—there is still a lot of noise.

This fuzziness gets even worse in early adolescence, when the predictive power of child height really drops off. For an adult-height-prediction calculator, click here. With this background, we can return to the 2 x 2 rule. The average height at age 2 is, in fact, about half of the average adult height, and the correlation between height at 2 and height in adulthood is about 0. It is about 6 feet 1 inch, not 6 feet 4 inches.

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At any time, you can update your settings through the "EU Privacy" link at the bottom of any page. These choices will be signaled globally to our partners and will not affect browsing data. We and our partners process data to: Actively scan device characteristics for identification. I Accept Show Purposes. Two Years Times Two Method The "two years times two" method for predicting your child's future height is as easy as it sounds. To predict your child's height with this method: Figure out how tall your child is or was at age 2.

Multiply that height by 2. Follow the Curve Method The "follow the curve" method is another easy way to predict your child's potential adult height. Genetic Potential Height Predictor. A Word From Verywell When your kids go through a growth spurt, you may wonder if they'll ever stop growing. Was this page helpful? Thanks for your feedback! Sign Up. What are your concerns?

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