Roughly how tall will i be as an adult?

Question

is there a way of finding out, besides taking the x-rays? any other methods would be helpful. i heard if you check the size of your knee cap or something, you can figure out your maximum height. i'm a 14 year old girl at 5 feet 3 1/2 inches. my dads about 5 feet 7inches. my mom's 5 feet 4 inches. my brother whos fully grown is over six feet. my sister, also fully grown is 5 feet seven. any ideas?

Answer 1

You will probably peak at 5'5 plus at the age of 15 when girls usually stop growing.  How much above 5'5 (if at all) is uncertain.

Answer 2

Find out from your mom how tall you were at two and then double it.  It's within an inch or two.  

Answer 3

once you turn 21, you will know how tall you will be. that is about the time you will stop growing