how many fifths in a half gallon of water

[ElliottAnn]

While the term "fifth" usually brings to mind something a bit stronger than water, the math is the same regardless of what you're pouring. To answer your question directly, there are 2.5 fifths in a half gallon of water.

If you're curious about the breakdown, it's all about fluid ounces. A half gallon contains 64 fluid ounces. A "fifth," which is one-fifth of a gallon, holds about 25.6 fluid ounces. When you divide the 64 ounces in your half gallon by the 25.6 ounces in a fifth, you get a perfect 2.5.

So, whether you're measuring for a recipe or just trying to win a very specific trivia night, you can confidently say that a half gallon container is holding two and a half fifths of liquid.