Every I.D. I've ever had said 6ft on it. When I was in the military they measured my height and said I was 6ft. A couple years ago I went for a physical and the doctor said 5' 11 and a 1/2. Now honestly...when someone asks me how tall I am...I'm going to say 6ft because it's easier to say than 5'11 and a half. And no one is really going to measure me and say "Hey man! You a half a inch short!"