When does a guy typically 'stop growing'?

Anonymous
So I'm about 20 in a months time, I'm 5 ft 6, not really any facial hair but looking at other guys I feel like I'm completely different to most, my last girlfriend found my height a big turn off, and online there's been so many conflicting reports on when a guy stops growing.

What age would be correct here?
When does a guy typically 'stop growing'?
9 Opinion