How tall will my child be?
The mid-parental (Tanner) formula explains roughly 60–80% of adult height — the rest is nutrition, health and environment.
Boys: (father + mother + 13) / 2. Girls: (father + mother − 13) / 2. The 13 cm offset accounts for sex difference.
Pediatricians track percentile curves on growth charts; this calculator gives the genetic potential ceiling.