How tall will i be ? 12/?

Hi i am 12 and 172.5 cm tall, im from egypt and from what i hear pollution can stunt growth severly both my parents grew up there and my dad is 177cm and my mom is 156 cm tall.(Cairo is highly polluted.) My family dosent seem to be too tall but my dad has a cousin who is 207cm tall. From what isee ive seen some egyptian couples who were shorter then my mom and dad have children who ended up about 6,4. I was wondering how tall do you think i will be (most calcualtours say 6,4.) I am a male by the way.