Average height for a 13 year old girl in america July 8, 2019 16 32 64 128 Average height for a 13 year old american girl What is the average height for a 13 year old girl in america in feet Average height for 13 year old american girl in feet 13 years old height and weight Height 14 year old boy What's the average height for a 13 year old Average height for a 15 year old