I am 16 years old and my height is 5.7 inches but I wanna know that can I can grow to 6.8 inches?

www.wolframalpha.com/input/?i=growth+chart+female%2C+9yr%2C+4%276%27%27&lk=6&ab=c

You can type your details into this and see what you get. It is required to use ' for feet and " for inches.