How Many Ounces In A Gallon?

Wondering how many ounces are in a gallon?

Maybe you aren’t sure about the volume of the liquid you should be drinking each day to keep your body (and mind) in tip-top shape.

To dive deeper, grab a glass of water, and let’s talk gallon measurements, hydration, and more!

What’s the difference between the British imperial system and the oh-too-familiar metric system? What’s the number of ounces in a gallon?

Ounces, or “uncia,” if we want to quote the Romans, is a unit of weight (dry ounce) or a unit of volume (fluid ounce).

Now that you know how many ounces are in a gallon according to the US system, let’s go over the different measuring systems around the world.

Having a good understanding of all the different imperial systems of measurement can help you in many aspects of your day-to-day life.

(There are 128oz in 1 gallon of liquid.)

Get your free Ounces To Tablespoons Conversion Chart through this link.

Get a free conversion chart here!