# How many ounces in a gallon (gal to oz)

## 🆚 Wet vs. Dry Gallons

There are two types of gallons: wet gallons and dry gallons. Wet gallons are used to measure liquids such as water, gasoline, and milk. One wet US gallon equals 128 US fluid ounces.

Dry gallons, on the other hand, are used to measure dry ingredients such as grains, fruits, and vegetables. A dry gallon equals 231 cubic inches, which is ⅛ of a bushel.

Although dry gallons are used less often than their liquid counterparts, it is important to remember that a dry gallon is larger in size.

The conversion between dry and wet gallons remains the same, with 4 quarts to a gallon, 2 pints to a quart, and 2 cups to a pint, regardless of the type of material being measured.

## ⚖️ Fluid vs Dry Ounces

Both the fluid ounce and the dry ounce are units of weight or volume, but they are not interchangeable.

Fluid ounces are used for liquids and are a measure of volume, while dry ounces are used for dry ingredients such as grains and are a measure of weight.

One ounce of water weighs one ounce, but the weight of a dry ounce can vary depending on the density of the material.

It is important to use the appropriate unit of measurement for the substance being measured.

## 💬 How many ounces are in a gallon?

In the US Customary system, a US gallon contains 128 US fluid ounces, while in the UK Imperial system, an imperial gallon contains 160 imperial fluid ounces.

So the number of ounces in a gallon depends on the specific measurement system.

## ✖️ How to convert gallons to ounces

To convert US gallons to US fluid ounces, multiply the number of gallons by 128.

Here’s a simple formula:

Number of fluid ounces = number of gallons x 128

### 🇬🇧 UK Imperial System

To convert imperial gallons to imperial fluid ounces, multiply the number of gallons by 160.

Here’s a simple formula:

Number of fluid ounces = number of gallons x 160