Enter the height of the father and mother and select the child’s gender to predict the child’s adult height using the midparental height formula.
Midparental Height Formula
The midparental height formula is used to estimate the adult height of a child based on the heights of the parents.
For boys: Child’s Height = ((Mother’s Height * 12/13) + Father’s Height) / 2 + 2.5
For girls: Child’s Height = ((Father’s Height * 13/12) + Mother’s Height) / 2 – 2.5
Variables:
- Father’s Height (inches)
- Mother’s Height (inches)
- Child’s Gender (male or female)
To calculate the predicted adult height of a child, use the appropriate formula based on the child’s gender and input the parents’ heights.
What is Midparental Height?
Midparental height is an estimate of a child’s future adult height based on the average height of the parents, with adjustments made for the child’s gender. This method is commonly used by pediatricians to help predict a child’s growth pattern, although it is not an exact science and individual results can vary due to genetics, nutrition, health, and other factors.
How to Calculate Midparental Height?
The following steps outline how to calculate the Midparental Height.
- First, determine the father’s height in inches.
- Next, determine the mother’s height in inches.
- Choose the child’s gender (male or female).
- Use the appropriate formula based on the child’s gender to calculate the predicted height.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Father’s Height = 70 inches
Mother’s Height = 65 inches
Child’s Gender = Male
Using the formula for boys: Child’s Height = ((65 * 12/13) + 70) / 2 + 2.5 = 68.75 inches
