Originally Posted by
staehpj1
FWIW, your math is pretty fuzzy. Yes it is over 6 pounds, but WAY over. 100 fluid ounces is over a gallon and a half (1.5625 to be exact).
A fluid ounce is a unit of volume, not weight. One fluid ounce of water does not weigh exactly one ounce (thanks, Imperial system). A gallon displaces 128 fluid ounces, but a gallon of water weighs 133 oz.
A gallon of water weighs 8.34 pounds so 100 ounces of water weighs a hair over 13 pounds.
There are 16 ounces in a pound. 100 ounces/(16 oz/lb) = 6.25 lb