Gallon is Oz. That’s 128

Ever wonder how many ounces are in a gallon?

That's a question that can be easily answered by doing a quick Google search. But did you know that there are actually two different types of gallons? The US gallon and the imperial gallon are both used in different parts of the world, and they have different volumes.

Before we talk about converting ounces to gallons, it's important to know which gallon type is being used. It will help you avoid confusion and ensure you get the correct measurement.

US Gallon vs. Imperial Gallon

US gallon

• Abbreviation: gal
• Volume: 128 fl oz (fluid ounces)
• Used in: the United States, Puerto Rico, and some other countries

Imperial gallon

• Abbreviation: imp gal
• Volume: 160 fl oz
• Used in: the United Kingdom, Canada, and some other countries

How to Convert Ounces to Gallons

Now that you know the difference between US and imperial gallons, you can start converting ounces to gallons.

Converting to US Gallons

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

For example, 64 ounces divided by 128 equals 0.5 US gallons.

Converting to Imperial Gallons

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

For example, 64 ounces divided by 160 equals 0.4 imperial gallons.

Converting Between US and Imperial Gallons

To convert from US gallons to imperial gallons, multiply the number of US gallons by 0.83267.

To convert from imperial gallons to US gallons, multiply the number of imperial gallons by 1.20095.

Table of Conversions

Common Mistakes to Avoid

When converting ounces to gallons, be sure to avoid these common mistakes:

• Using the wrong type of gallon. Make sure you know which gallon type is being used before you do the conversion.
• Dividing by the wrong number. Divide the number of ounces by 128 to convert to US gallons or by 160 to convert to imperial gallons.
• Rounding the answer incorrectly. When rounding the answer, be sure to round to the nearest hundredth.

Applications

Converting ounces to gallons is a useful skill to have in everyday life. Here are a few examples of how you can use this conversion:

• Cooking. Recipes often call for ingredients to be measured in ounces or gallons. Knowing how to convert between these units will help you follow the recipes accurately.
• Shopping. When you're shopping for liquids, such as milk or juice, you'll need to know how to convert ounces to gallons to figure out how much you need to buy.
• Home improvement. Many home improvement projects require you to measure liquids in ounces or gallons. Knowing how to convert between these units will help you get the job done right.

Conclusion

Converting ounces to gallons is a simple process, but it's important to know which gallon type is being used and to use the correct conversion formula. By following the tips in this article, you can easily convert ounces to gallons and avoid common mistakes.