If you are a 15 years old girl and 4'11 will get taller?

I'm here to tell you that you're probably done growing in height. I was measured as 5'7" at age 13 and still am as an adult.

You might, however 15 is the average age for a girl to stop growing. The average height for a 15 year old girl is about 5 feet and 4 inches, so you are about 5 inches short. The oldest age for a girl to stop growing is 21 though, so you may grow quite a bit over the years.