At what age do girls stop growing?

14 years: For the average girl, but it depends on the start of puberty. For early maturers as early as 9yrs, for late maturers as late as 18 yrs. It is not only how early you start puberty, but how fast you go.

Depends: The hormones that trigger puberty also accelerate growth briefly before telling the growth centers to close. Most have closed by 16-17 or 5-7 cm after their first menses.An xray of the wrist/hand can be used to identify the growth centers and determine growth potential.When the growth centers are consistent with a bone age of 16-17, little or no further linear growth is possible.