Midparental height formulas
Boys: [father's height in cm + (mother's height in cm + 13 cm)]/2
Girls: [(father's height in cm – 13 cm) + mother's height in cm]/2
Sample calculations
Midparental height calculations for a son and a daughter of parents with the following heights: father is 172.72 cm, mother is 157.48 cm
	Son: [172.72 cm + (157.48 cm + 13 cm)]/2 = 171.6 cm
	Daughter: [(172.72 cm – 13 cm) + 157.48 cm]/2 = 158.6 cm