Babies who are “born long” may be more likely to grow up to be tall. But the biggest indicator will be the height of the baby’s birth parents. A popular formula involves finding a sort of average between the mother and father. Add up the height of both parents, then add five for a boy and subtract five for a girl and divide by two. You can also double a boy’s height at 2, or a girl’s height at 18 months. Neither method is precise, and of course, often people defy the averages and wind up taller than both parents, for example. The only way to know for sure is, like so many things with babies, to wait and see.
Source: https://www.sheknows.com/
