Use this Mid-Parental Height Calculator to estimate a child’s genetic target adult height based on the biological mother’s and father’s heights. The result is a helpful reference point, not a promise of final height.
How This Calculator Works
Choose child sex
The formula adjusts differently for boys and girls.
Enter parent heights
Use feet/inches or centimeters. The tool converts values internally.
Mid-Parental Height Formula
Boy
(Father + Mother + 5 inches) / 2
Girl
(Father + Mother - 5 inches) / 2
Related Growth Calculators
Use these companion tools to understand a child’s growth from different angles:

