Girls typically stop growing in height about 2 to 2.5 years after their first menstrual period, which usually means around the ages of 14 or 15. Most girls experience their main growth spurt during puberty, which starts between ages 8 and 13, and grow rapidly in the 1-2 years before menstruation begins. After menstruation starts, they usually grow an additional 1-2 inches before reaching their adult height. Growth stops when the growth plates in the bones close, typically by mid- to late teens. Some variation occurs depending on genetics, health, and the timing of puberty, but generally, girls do not grow taller after age 15.