Learn how many cups are in a gallon. Enjoy cups to gallon conversion along with quick conversion tables, a Mr. Gallon man poster, and a free conversion printable.

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Cups to gallons
1 cup to a gallon (1c to gal)
How many cups are in a gallon? There are 16 cups in 1 gallon, or 16 c = 1 gal
Jump to:
- Cups to gallons
- How to convert cups to a gallon
- What is a gallon?
- Standard gallon vs. Royal gallon
- What is a cup?
- How many cups in a gallon
- How many cups in half gallon
- Cups to gallons quick conversion table
- Gallons to a cups quick conversion table
- Mr. Gallon man
- How to measure liquid ingredients
- Free conversion printable
- Related conversions
- Conclusion
- FAQ
- Comments
1 gallon to cups (gal to 1c)
How many gallons are in a cup? There are 1/16 gallons in a cup.
How to convert cups to a gallon
To convert 1 cup to a gallon, divide the cups by 16, where 16 is a conversion factor.
For example, 1 cup to gallon calculation:
1 c ÷ 16 = 0.0625 gal
1 Cup to Gallon Conversion Equation:
1 c ÷ 16 = 0.0625 gal
Other helpful conversions include:
- 1 gallon = 4 quarts, 8 pints, 16 cups, 128 fluid ounces, 3.8 liters
- 1 quart = 2 pints, 4 cups, 32 fluid ounces, ¼ gallon, 0.95 liters
- 1 pint = ½ quart, 2 cups, 16 fluid ounces, 0.125 gallon, ⅕ liter
- 1 quart = 2 pints, 4 cups, 32 fluid ounces, ¼ gallon, 0.95 liters
- 1 cup = 8 oz, 48 teaspoons, 16 tablespoons, ½ pint, ¼ quart
What is a gallon?
The gallon has a fascinating history, with many different definitions and redefinitions throughout the years.
Gallon (abbreviation 'gal') is a unit of volume used in the USA and some Latin American and Caribbean countries.
There are different types of gallons. Royal gallon is scarcely found in the United Kingdom; they still use an imperial measurement system along with a metric system.
US dry gallon is equal to ⅛ US bushel or 4.4 L. Therefore, it is about 14.1% bigger than the US fluid gallon.
Interestingly, Canadians consider the debate liter and gallon as standard units.
Standard gallon vs. Royal gallon
The US gallon is a standard unit for measuring volume in America. The conversion system says that a gallon equals 3.78 liters or 16 cups.
1 US gallon = 16 US cups
1 US gallon = 3.78 liter
1 US gallon = 231 cubic inches
The imperial gallon (aka British or Royal gallon) is 20% more than the US gallon and equals 4.546 liters.
1 British gallon = 1.2 US gallon
1 British gallon = 4.546 liters
It is essential to distinguish between the US customary gallons and Royal gallons. Why?
Because the US gallon is smaller than the UK one, meaning that if purchasing a gallon at home or abroad, then expect to have less remaining after purchase.
What is a cup?
A cup is a measurement unit equal to 8 ounces. There are 16 cups in a gallon, 8 cups in a half-gallon, 4 cups in a quart, and 2 cups in a pint.
Besides the US cup, there are metric and Imperial cups, units of liquid measurements.
How many cups in a gallon
One of the most straightforward conversions is from cups to gallon.
1 gallon = 16 cups.
There 16 cups make one gallon. In other words, one gallon equals 16 cups.
How many cups in half gallon
One gallon equals 16 cups, so half of a gallon has 16/2 cups.
½ Gallon = 8 cups
There 8 cups make half a gallon gallon. In other words, ½ gallon equals 8 cups.
Cups to gallons quick conversion table
Here is a simple conversion chart for your reference. All the quick conversions below are in US liquid measures.
Cups | Gallons |
---|---|
¼ cup | 1/64 gal |
½ cup | 1/32 gal |
1 cup | 1/16 gal |
2 cups | ⅛ gal |
4 cups | ¼ gal |
8 cups | ½ gal |
16 cups | 1 gal |
To calculate further,
- 16 cups are equivalent to one gallon.
- There are 32 cups in 2 gallons.
- There are 48 cups in 3 gallons.
- There are 64 cups in 4 gallons.
- There are 80 cups in 5 gallons.
- There are 8 cups in half a gallon.
- There are 4 cups in a quarter gallon.
Gallons to a cups quick conversion table
Here is another simple, handy chart - gallon to cup conversion table.
Gallons | Cups |
---|---|
¼ gal | 4 cups |
½ gal | 8 cups |
1 gal | 16 cups |
2 gal | 32 cups |
3 gal | 48 cups |
4 gal | 64 cups |
5 gal | 80 cups |
10 gal | 160 cups |
Mr. Gallon man
The Gallon guy below will be your best friend when it comes time to convert between cups and gallons.
Also, use this Mr. Gallon man image (created as 8.5 x 11 inches) to teach your kids about liquid measurements.
Students in high school might want to decorate their room with this wall art.

Download and print the Gallon Man PDF>>
How to measure liquid ingredients
To measure wet ingredients in the proper way, use standard measuring cups with the pour spout on the side (aka liquid measuring cups).
You should place your measuring cup on a flat surface, for example, the table, and pour the liquid until you reach the desired amount.
The easy way is to bend down so that you are at eye level with the container; you will get the most precise measurement.
This same method works to measure a third of a cup or half a cup.
Note: Dry measuring cups are different from liquid measuring cups.
Free conversion printable
To make your cooking more accessible, I created a kitchen conversion chart for multiple measurement conversions.
This handy kitchen chart is so helpful. It converts between US fluid gallons, quarts, pints, cups, US and Imperial fluid ounces, and liters. Enjoy it for making your favorite recipes.
Download, print it, and put it on a cabinet door. You can even laminate the chart or frame it to give it as a gift!

Download and print this Kitchen Conversion Chart >>
More kitchen printables are part of the FREE resource library.
Related conversions
There are a lot of different cooking conversions that you can use when baking or cooking. Have fun discovering others like
- Grams To Cups Conversions
- Cups To Grams Conversions
- How Many Cups In A Pint
- How Many Milliliters In A Teaspoon
- How Many Milliliters In A Tablespoon
And if you ever need to convert your baking pan sizes, use this simple Cake Pan Converter.
Conclusion
I hope you enjoyed this post on how many cups per gallon. You might see other frequently asked questions about gallon to cups conversion, for example:
- How many cups in 1 gallon
- How many cups make a gallon
- How many cups in one gallon
- How many cups equal a gallon
- How many cups per gallon
- 1 gallon equals how many cups
The answer is the same: There are 16 cups in a gallon.
Mastering baking is not as tricky as many believe, although it takes time and effort. Luckily for you, I have created a page New? Start here to take advantage of my free resources.
FAQ
There are 16 cups in a gallon of water.
There are 16 cups of milk in a gallon.
There are 8 cups of milk in a half gallon.
There are 16 cups in a gallon of mayonnaise.
8 cups equal ½ gallon.
There are 24 cups in a gallon and half.
There are 4 cups in a quarter gallon.
3 gallons equals 48 cups.
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