Input:   Sex Female Male Height Mother   cm in m Height Father   cm in m

Results:   Height Potential   cm in m

This height prediction is based on the sex adjusted midparental height, using the following formulae:

• Girls: subtract 13 cm from the father's height and average with the mother's height.
• Boys: add 13 cm to the mother's height and average with the father's height.
• 13 cm is the average difference in height of women and men.
• For both girls and boys, 8.5 cm on either side of this calculated value (target height) represents the 3rd to 97th percentiles for anticipated adult height.

References

1. Tanner JM, Goldstein H, Whitehouse RH. Standards for children's height at ages 2-9 years allowing for heights of parents. Arch Dis Child. 1970 Dec;45(244):755-62.