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It depends on if you are using U.S. or Imperial form of an ounce, really. One Imperial ounce is 1/160th of a gallon and one U.S. ounce is 1/128th of a gallon. Take the U.S. ounce for example, and basic fraction math will state that it takes 128 ounces to form one gallon. Multiply this by 2 and you get your answer of 256 ounces.

Long answer short: 256 U.S. ounces or 320 Imperial ounces.

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16y ago

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