This may be late, but i just want to add some info regarding the Air Force. During the application process, when you get your physical at MEPS, you just have to meet the height/weight standards, take a eye test (I have terrible vision, but correctable so I passed), hearing test, prove you are the gender you say you are, etc. When I go to Officer Training this summer, I ALSO have to meet th height/weight requirements, which are for based on gender and age as well. Also, they check you waist-to-hip ration If you/me/anyone is ABOVE the listed weight, they are automatically sent home from officer training, discharged from the Air Force, and the scholarship is revoked. It seems like the Air Force is really toughening up on this issue. I'm rather fortunate that at 5'3", i've never weighed more than 117, and that is purely genetics. The reason they check both height/weight and waist-to-hip ratio is because is guys who are really built, their weight may look really high for their height, so BMI isn't the best measurement.
Anyway, if you are thinking AF, at 6' tall, your max is approx 206. The current chart they have on the AF HPSP website is not broken down my age, but I know they will use a more accurate chart at officer training.
I hope that was helpful.