How to Estimate the Adult Height of Children at Two and One-Half Years of Age

By Tess Reynolds
A little measuring and math help you estimate how tall your child will grow.
A little measuring and math help you estimate how tall your child will grow.

A child's future height can be estimated by the time she reaches age 2. In Medical Edge, a newspaper published by the Mayo Clinic, Dr. Siobhan Pittock states, "That's because by 2 most children have reached the growth chart percentile they will stay on as they grow." Determining how tall your 2 1/2-year-old child will be in adulthood requires a little math, but by measuring, subtracting and multiplying, you can figure the approximate future height of your toddler.

Measure your child by having him stand with his back against a wall, helping him stand straight and tall with his heels touching the wall. Make a pencil mark on the wall at the top of his head. Allow him to walk away, then measure in inches from the floor to the pencil mark with a measuring tape.

Subtract 1 1/2 inches. According to growth charts published by the Centers for Disease Control, children grow approximately 1 1/2 inches from age 2 to age 2 1/2. The number you have now is the approximate height of your child at 2 years of age.

Double this number. This is the height your child will likely grow to be as an adult. Boys may be a little taller than this height, and girls are generally a little shorter.

Tip

If you have past growth charts from your doctor showing your child's height at age 2, simply double that number to find a more accurate result. This activity provides you with only an estimation. If you have any questions or concerns about the growth of your child, ask your pediatrician.

About the Author

Tess Reynolds began writing in 2010 for various websites, specializing in parenting, relationships, film and video-editing topics. She has taken private local classes to expand on her interests. She also enjoys writing about computers, family and home improvement.