Family-based height estimate

Genetic Target Height Calculator

Estimate your child’s family-based target height from the biological parents’ heights.

Simple, private, and calculated in your browser.

Step 1

Enter the parents’ heights

Use the biological mother’s and father’s measured heights.

Step 2

Your estimate will appear here

Enter both parents’ heights to see the child’s genetic target-height estimate.

How is this calculated?

This uses the sex-adjusted midparental-height method. It averages the biological parents’ heights after adding 13 cm for a boy or subtracting 13 cm for a girl.

For boys: (mother’s height + father’s height + 13 cm) ÷ 2. For girls: (mother’s height + father’s height − 13 cm) ÷ 2.

Sources

Formula and range guidance: American Academy of Pediatrics / HealthyChildren.org and American Family Physician.