im a lanky 5'9 13 year old my mom is 5'7 my dad is either 6'2 or 6'3 my shoe size is 10.5 how tall would i be at age 21

3 FT

Done

Usually girls start coming to a halt around your age.... If you do grow, it'll likely only be at most an inch, otherwise, you've maxed out. Which is a PERFECT height by the way.