How many ounces in a gallon measurement?

Answer 1

Lets see...

1 Litre of water weighs 1 kilo or

1.7 pints weighs 2.2 pounds

1 Gallon = 8 pints or 4.7 litres

4.7 x 2.2 = 10.34 pounds

16 ounces to a pound means 165.5 ounces of water per gallon

Bear in mind this measurement is using water and a denser material (such as beer or treacle) will be heavier as ounces is a measure of mass whilst a gallon is a measure of volume.

Plus the equivalent weights I used at the start are only approximate and are out albeit very slightly

Answer 2

There are 128 fluid ounces in a gallon measurement.