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# Convert Gallons to Ounces

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Conversion of gallons to ounces: Gallons and ounces are used to measure the weight. A measure of 128 US fluid ounces makes 1 US gallon and a measure of 160 British Imperial Fluid Ounces makes 1 British Imperial gallon.

Gallons

gal

Ounces

oz

## What is a Gallon?

A Gallon is a unit of measurement for liquids and one US gallon is 3.79 liters and 1 British imperial Gallon is 4.54 litres. It’s denoted by ‘gal.’

Common Usage:

• Used for measuring water in a tank.
• Used for measuring milk in a big can.
• Used for measuring oil in a big vessel.

## What is an Ounce?

An Ounce is the smallest unit used for measuring the weight, mass, or volume and it is equal to one-sixteenth of a pound. The weight is generally measured in ounces and pounds in the United States while other countries use metric units such as Newtons. It’s denoted by ‘oz.’

Common Usage:

• Used for measuring packaged foods.
• Used for measuring postal items.
• Used for measuring the weight of paper.

Dry Ounce

A Dry ounce is the smallest unit of measurement. It is generally used for measuring dry ingredients in the kitchen such as nuts, seeds, sugar, salt, and other various kinds of powders, etc.

Fluid Ounce

Fluid ounces are commonly used for measuring the volume of liquid items such as milk, yogurt, cooking oil, honey, etc. It’s denoted by ‘fl oz.’

• It’s always advised to measure the liquid items in cups and but if you are using dry ingredients then you will have to measure that in scale. As one cup equals 8 fluid ounces, different dry items will have different weights.

## How to convert Gallons (gal) to Ounces (oz)?

The formula to convert gallons to ounces is given below:
X US gal = X × 128 US fl oz
X  Imperial gal = X × 160 Imperial fl oz
where X is the value of gallons.
As
1 US Gallon = 128 US fluid ounce
I British Imperial Gallon = 160 British Imperial Fluid Ounce

## Examples of the conversion of US Gallons to US Fluid Ounces

Problem 1: How to convert 10 US gallons to US fluid ounces?
Solution 1:

Step 1: The given value is 10 US gallons.
Step 2: To convert US gallons to US fluid ounces, substitute the given values at the required places in the conversion formula.
X US gal = X × 128 US fl oz
Hence,
10 US gal = 10 × 128 US fl oz
= 1280 US fl oz
Therefore, 10 US gallons is 1280 US fluid ounces.

Problem 2: How to convert 45 US gallons to US fluid ounces?
Solution 2:

Step 1: The given value is 45 gallons.
Step 2: To convert US gallons to US fluid ounces, substitute the given values at the required places in the conversion formula.
X US gal = X × 128 US fl oz
Hence,
45 US gal = 45 × 128 US fl oz
= 5760 fl oz
Therefore, 45 US gallons is 5760 fluid ounces.

Problem 3: How to convert 90 US gallons to US fluid ounces?
Solution 3:

Step 1: The given value is 90 gallons.
Step 2: To convert US gallons to US fluid ounces, substitute the given values at the required places in the conversion formula.
X US gal = X × 128 US fl oz
Hence,
90 US gal = 90 × 128 US fl oz
= 11520 fl oz
Therefore, 90 US gallons is 11520 fluid ounces.

## Examples of the Conversion of British Imperial Gallons to British Imperial Ounces

Problem 1: How to convert 10 British Imperial Gallons to British Imperial Ounces?
Solution 1:

Step 1: The given value is 10 British Imperial gallons.
Step 2: To convert British Imperial Gallons to British Imperial Ounces, substitute the given values at the required places in the conversion formula.
X  Imperial gal = X × 160 Imperial fl oz
Hence,
10 Imperial gal = 10 × 160 Imperial fl oz
= 1600 Imperial fl oz
Therefore, 10 Imperial gallons is 1600 Imperial fluid ounces.

Problem 2: How to convert 50 British Imperial Gallons to British Imperial Ounces?
Solution 2:

Step 1: The given value is 50 British Imperial gallons.
Step 2: To convert British Imperial Gallons to British Imperial Ounces, substitute the given values at the required places in the conversion formula.
X  Imperial gal = X × 160 Imperial fl oz
Hence,
50 Imperial gal = 50 × 160 Imperial fl oz
= 8000 Imperial fl oz
Therefore, 50 Imperial gallons is 8000 Imperial fluid ounces.

Problem 3: How to convert 6 British Imperial Gallons to British Imperial Ounces?
Solution 3:

Step 1: The given value is 6 British Imperial gallons.
Step 2: To convert British Imperial Gallons to British Imperial Ounces, substitute the given values at the required places in the conversion formula.
X  Imperial gal = X × 160 Imperial fl oz
Hence,
6 Imperial gal = 6 × 160 Imperial fl oz
= 960 imperial fl oz
Therefore, 6 Imperial gallons is 960 imperial fluid ounces.

## FAQs on the conversion of gallons to ounces

Is 64 oz the same as 1 gallon?
No, 64 ounces is half a gallon. As 64 ounces are 0.5 gallons in US Customary Units and 0.4 ounces in 1 gallon in the British Imperial system.

How many 16 oz bottles of water does it take to equal a gallon?
It takes eight 16 oz bottles of water to make a gallon in the US customary units and ten 16 oz bottles of water to make a gallon in the British Imperial system.

Is 32 oz half a gallon?
No, 32 oz is a quarter of a gallon in the US Customary Units.

How many 64 oz does it take to make a gallon?
Two 64 oz makes a gallon in US Customary Units and 2.5 oz makes a gallon in the British Imperial system.

What is a gallon?
A Gallon is a unit of measurement for liquids and one US gallon is 3.79 liters & 1 British imperial Gallon is 4.54 litres. It’s denoted by ‘gal.’

How many ounces are in a gallon?
1 US liquid gallon = 128 US fluid ounce

Convert 90 oz to gallons.
1 oz = 128 gal
90 oz = 0.703125 gal

Convert 8 fluid ounces to gallons.
1 oz = 128 gal
8 oz = 0.0625 gal

References

The SI Base

Written by

Rahul Lath

Reviewed by

Arpit Rankwar