How to Predict the Height of Your Child

An exciting part of parenthood is watching your child blossom into the adult he will eventually become. You watch his baby features fill out as he learns to walk and talk, and you see how the blend of you and your spouse begins to emerge in an entirely new individual. As your child grows, you probably wonder what your child will look like or how tall he may be. Will he look more like you or your spouse, and will he grow to your height or to your spouse's? Although no definitive calculation exists, your pediatrician or a family member or friend may use a formula to approximate your child's height as an adult. In addition, you can find calculators on the Internet.

Instructions

    • 1

      Combine both your and your spouse's height and divide the total by 2. Add or subtract 2.5 inches, depending on the sex of the child. For boys, add height, and for girls, subtract 2.5 inches. The result is the "mid-parental" height, and this figure can estimate your child's adult height by a margin of 4 inches.

    • 2

      Multiply your child's height when he or she reaches the age of 2. For example, if she is 33 inches tall, multiply by 2. The resulting number estimates her adult height at 66 inches, although girls tend to be a little shorter than this number, while boys tend to be taller.

    • 3

      Use a calculator online, such as the one available through WebMD (webmd.com). Input the height of each parent, as well as the gender, height, weight and age of your child, so that the program can calculate its estimation.