Six feet four inches and 305 lbs. is big for any age. Additionally, I suspect 305 lbs. is overweight for six feet four inches unless it's all muscle.
4 pounds
64 pounds is about 4 stone 8 pounds
1 pound = 16 ounces. 64 ounces = (64/16) = 4 pounds.
64 ounces / 16 ounces/pound = 4 pounds
64/17 = 3 with a remainder of 13
4 pounds
There are 16 ounces in a pound 64/16 = 4 pounds
64 = 1024
64 pounds is about 4 stone 8 pounds
64 ounces is four pounds.
64 pounds is 1,024 ounces.
64 ounces = four pounds.
64 kilograms = 141.1 pounds.
64 pounds is about 29 kilograms.
64 pounds = 4st 8lb
64 ounces = 4 pounds
12/64 or 3/8