Women typically stop growing physically around the age of 18 years. Most girls experience their major growth spurt during puberty, which occurs roughly between ages 10 and 14, and generally reach their adult height about two to two and a half years after their first menstrual period, often around age 14 to 15. However, this can vary based on genetics, nutrition, and individual development, with some growth possibly continuing into the late teens or even early twenties in rare cases.