Number of Ounces in a Gallon
How many ounces are there in a gallon?
There are 128 U.S. liquid ounces in 1 U.S. liquid gallon. If measured in UK imperial units, there are 160 UK liquid ounces in 1 UK gallon. 1 US ounce is equal to 1.04 UK ounces and 1 US gallon is equal to 0.83 UK gallons.