How many ounces are in a gallon?

A gallon is a widely used unit of measurement for liquids, gas, and fluids that is equal to eight pints.

Answer: 1 gallon is 128 ounces. 

Explanation:

Ounces and gallons are widely used units of measurement in Britain as well as other English-speaking communities. 

There are three significantly different sizes of gallons currently in use.

Use this easy and mobile-friendly conversion calculator to convert the quantity from ounces to gallons in minutes.

Thus, we can state 1 gallon is precisely equal to 128 ounces.