Question 1

How tall will my child be as an adult?

Accepted Answer

The most common method is the mid-parental height formula: for boys, add 5 inches to the mother's height, add the father's height, and divide by 2. For girls, subtract 5 inches from the father's height, add the mother's height, and divide by 2. This gives an estimate within +/- 2 inches.

Question 2

How accurate is the height predictor?

Accepted Answer

The mid-parental height formula provides an estimate within about +/- 2 inches (5 cm) of actual adult height. Nutrition, health conditions, and genetic variation can cause actual height to differ.

Child Height Predictor