I know, grammar. But what can I do, *“how many water bottle is a gallon”* is an actual query people type into search engines, so that’s what I’m trying to answer. And well, as you can see in the **How Many Water Bottles Is 2.7 Liters** post, how many water bottles make one gallon depends.

*This post contains affiliate links and I earn a commission from qualifying purchases at no cost to you. Thanks for your support!*

**Water bottles** come in various sizes but one of the most common sizes contains **16.9 fluid ounces** *(500 milliliters or 0.5 liters)* of liquid.

**In a gallon, there are 128 fluid ounces**, or in other words, one fluid ounce in the US is defined as a 1/128th of a US gallon. So, let’s see

## how many 16.9 bottles make a gallon

**Divide the gallon number by the common water bottle size**, and then you can see an approximate result for 16.9 bottles in a gallon:

128 / 16.9 = 7.57.

Let’s summarize it: one gallon of water is equal to 128 fluid ounces, so if each water bottle we use to fill in a gallon contains 16.9 fluid ounces, then we would need 7 and a half of those common-size water bottles to make a gallon.

This is just one possible answer, but if you want to calculate how many water bottles fill up a gallon, you can use the gallon-per-bottle size division or a handy converter to figure it out.

Cheers!

*Featured image credit:Photo by Bluewater Sweden on Unsplash*

**Shop Related Products:**

Related posts:

**How Many Water Bottle Is 2 Liters?**

**How Many Water Bottles Is 2.7 Liters?**

**How Much Does A Water Bottle Weigh?**

**Hydration Math: How Much Is 16.9 oz Of Water?**

**Which Bottles Are Good For Drinking Water**