Hello!
It was previously believed that the wingspan of a person is equal to the height of that same person. But this is not at all consistent.
Because you are still relatively young and your bones are in an active state of growth, depending on your genes, proper balanced diet with required protein and calcium and active lifestyle it is possible for you to grow to be 6 ft. Usually for males growing stops at around age 21 or 22 and for girls a couple of years earlier. However, just because your wingspan is 6’2 1/2 inches wide does not mean you will grow to be that height. It was originally thought that wingspan was directly related to a person’s height but there is not enough evidence to make this assumption valid.
I would suggest you to play active sports, swimming, skipping, cycling, basketball etc whenever possible with well balanced diet.
Take care!