Height Calculator

Based on Child's Height at Age Two

Estimates how tall a child will be as an adult, using the child's height at age two (more below)!


Children experience significant height growth during their first two years, and many will be approximately half their adult height by their second birthday. The age two height calculator is based on this, and takes the child's height at two years old and doubles it, to provide an estimated adult height. Note that there have been no reliable studies to validate this, short of anecdotal from parents themselves; And, it's certainly a fun way to predict how tall your child might be!

Are you approximately twice the height you were at age two? If your parents kept an age chart, or used a wall to mark your height as you grew and you have a photo of it, pull it out and plug in your numbers!

Related Height Calculator: Mid-Parental Height Calculator, which uses a formula based on parent's heights as well as if child is a boy or girl.

All information provided on this calculator is for informational and entertainment purposes only. It is not intended as a substitute for advice provided by a medical doctor or qualified healthcare provider. Several factors, including genetics, health and nutrition contribute to how tall a child will actually grow. If you have any questions or concerns whatsoever about your child's growth rate, you should contact your child's medical doctor or healthcare provider.