If you double that height you get to 68″ which translates to 5 feet 8 inches tall. Our pediatrician told us recently that while the theory is true the height isn’t exactly when the child is 24 months old. The child might reach half their adult height when they are either 23 months old or 25 months. Either way, this is pretty cool. Jan 27, · The most common way to estimate a child's adult height is to base it on the parents' heights. Two Years Times Two Method. Did you know the earliest growth spurt, from baby to toddler, actually accounts for roughly half of a child's adult height? A simple method to predict adult height is to double the child's height at age 2.

Sep 24, · You can calculate midparental height by adding the mother's and father's height in inches. Add 5 more inches for boys or subtract 5 inches for girls. Divide by two. Most children will reach an adult height within 2 inches of mid-parental height. Several factors can negatively affect final adult height. A chronic illness can considerably impede growth. There's no proven way to predict a child's adult height. However, several formulas can provide a reasonable guess for child growth. Here's a popular example: Add the mother's height and the father's height in either inches or centimeters. Add 5 inches (13 centimeters) for boys or subtract 5 inches (13 centimeters) for girls. Divide by two. Another way to estimate a child's adult height is to double a boy's height at age 2 .

Apr 01, · So much growth happens during the toddler years that kids generally reach half of their adult height within the first two years of life. Simply doubling your boy’s height at 2 years old and your girl's height at 18 months (since girls tend to develop faster than boys) gives you a rough guesstimate of your child's future stature. The Mid-Parent Rule is a simple formula to calculate adult height. It is based solely on the height of the parents and the child's gender. The height of the opposite gender parent is adjusted or multiplied by a factor. For fathers, the factor is 12/ For mothers, the factor is 12/