**How many fluid ounces in a gallon?** In our daily life, we deal with different quantities. Sometimes we have to convert a quantity into others such as fluid ounces to the gallon.

For this conversion, we use a standard measuring system depending on where in the world you live. This is because the measure of US liquid gallon is less than the Imperial gallon.

In this article, we will provide you a detailed guideline on how many fluid ounces in a gallon. So to learn the basic conversion in both measuring systems, read the article till the end.

## Fluid Ounces

The unit of volume in the US measurement system and the imperial customary system is known as a fluid ounce. In the US system, it is equal to 1/8 of a cup or 1/16 of a pint.

Sometimes, a fluid ounce refers as an “ounce”. But remember not to get confused with the unit of mass. The abbreviation for fluid ounce is “fl oz*“.*

## Gallon

The unit of fluid volume in the US and the imperial measuring system is a liquid gallon. In Us system, it is equal to four quarts, eight pints, or sixteen cups.

You should not confuse the US liquid gallon with the US dry gallon or the imperial gallon. They are different units of measure. The abbreviation for gallon is “gal”.

## How Many Fluid Ounces In A Gallon?

We will convert in both measuring systems.

### In US Measuring system

- 1 US Gallon = 128 US Fluid Ounces

So to find the fluid ounces in gallon we will multiply the value of gallon with 128.

**For Example**

If we have to find fluid ounces in 1.7 gallons then we will multiply 1.7 with 128.

- 1.7 gal = 1.7 x 128
- 1.7 gal = 217.6 fl oz

### In The Imperial Measuring System

- 1 Imperial Gallon = 160 Imperial fluid ounce

So to find the fluid ounces we will simply multiply the value of gallon with 160.

**For Example**

If we have to find fluid ounces in 2 gallons then we will multiply 2 with 160.

- 2 gal = 2 x 160
- 2 gal = 320 fl oz

## How Many Gallon In Fluid Ounces?

We will convert it in both measuring systems.

### In US Measuring system

- 1 US Fluid Ounce = 0.0078125 US Fluid Gallon
- Or 1 US Fluid Ounce = 1/128 US Fluid Gallon

So to find the gallon we will simply divide the value of fluid ounce with 128. Or else we can multiply the fluid ounce with 0.0078125

**For Example**

If we have to find a gallon in 768 fluid ounces then we will multiply 768 with 0.0078125

- 768 fl oz = 768 x 0.0078125
- 768 fl oz = 6 gal

### In The Imperial Measuring System

- 1 Imperial fluid ounce = 0.00625 imperial gallon
- Or 1 imperial fluid ounce = 1/160 imperial gallon

So to find the gallon we will simply divide the value of fl oz with 160. Or else we can multiply the fluid ounce with 0.00625.

**For Example**

If we have to find gallons in 546 ounces then we will multiply 546 with 0.00625

- 546 fl oz = 546 x 0.00625
- 546 fl oz = 3.4125 gal

These were examples to help you understand the concept of conversion for fluid ounces and gallons. Now it will be easier for you to use them in daily life tasks.

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