Use this cups to gallons calculator for easy conversions. Place your cup’s value in the blank space, and the calculator will automatically show the equivalent in gallons. Or make the calculations yourself with the cups to gallons formula.

## What is a Cup?

A cup is a term used in cooking or measuring to signify 8 ounces of liquid. It got its name from the standard drinking glass size in the United States.

The unit ‘cup’ is from the United States Customary and British Imperial Systems. In the Imperial system, a cup is larger, measuring 9.61 fluid ounces.

## What is a Gallon?

A gallon is a liquid measurement equal to 4.55 liters or eight pints of liquid. The unit ‘gallon’ belongs to the United States Customary System and Imperial System. A gallon is not from the metric system.

The Imperial gallon is 20% larger than the US Customary gallon, containing 19.2152 cups. The Customary gallon is a standard form of measurement in the United States and Canada, while parts of the UK and Ireland use the Imperial gallon.

## How Many Cups in a Gallon

### Cups to Gallons Conversion

Type a value in the Cups field to convert the value to Gallons:

Gallons: –

There are 16 cups in a gallon. Multiply the number of gallons you need by 16 to determine the equivalent amount of cups. If you’re going from gallons to cups, the simplest way to convert is to divide by 16.

To convert cups to gallons, you need to multiply by 16.

`Gallons = cups X 16`

To convert gallons to cups, divide by 16.

## How Many Cups in a Half Gallon

There are 8 cups in half a gallon. To convert half gallons to cups, multiply by 8.

`Half-Gallon = cups x 8.`

To convert cups to half-gallons, divide by 8.

8 ounces are in one cup of liquid, and 64 ounces are in a half gallon.

## Conversion Table Between Cups and Gallons

Cups | Gallons (US) |
---|---|

0.01 c | 0.000625 gal |

0.1 c | 0.00625 gal |

1/4 c | 0.015625 gal |

1/3 c | 0.020833 gal |

1/2 c | 0.03125 gal |

0.5 c | 0.03125 gal |

3 c | 0.1875 gal |

4 c | 0.25 gal |

5 c | 0.3125 gal |

6 c | 0.375 gal |

8 c | 0.5 gal |

12 c | 0.75 gal |

14 c | 0.875 gal |

15 c | 0.9375 gal |

16 c | 1 gal |

19 c | 1.1875 gal |

20 c | 1.25 gal |

21 c | 1.3125 gal |

22 c | 1.375 gal |

24 c | 1.5 gal |

25 c | 1.5625 gal |

32 c | 2 gal |

35 c | 2.1875 gal |

40 c | 2.5 gal |

48 c | 3 gal |

80 c | 5 gal |

85 c | 5.3125 gal |

90 c | 5.625 gal |

95 c | 5.9375 gal |

112 c | 7 gal |

Some basic equations exist for making these conversions:

- 1 cup equals 1/16th of a Gallon or 1/8th of a Half Gallon
- 1 cup equals 8 ounces, which is 1/16th of a Gallon or 1/8th of a Half Gallon
- There are 4 cups in a quart, which is ¼ of a gallon
- 128 ounces in a gallon can be divided by 8 to determine the number of cups

## Frequently Asked Questions

### How many 16-ounce cups are in a gallon?

There are approximately 8, 16-ounce cups in a gallon.

### How cups of water are in a gallon?

Assuming the cup of water is the standard 8 ounces, there are 16 of these 8 ounce cups in one gallon.

### How many Solo cups does it take to fill a gallon?

The basic Solo cup is 18 ounces meaning it would take 7 full cups and one cup filled 1/10th full to make one gallon. Be careful, however, as there are also mini solo cups which are 9 ounces. If you are using a 9-ounce solo cup, you will need 14 full solo cups and 1 cup that is 22% full to make one gallon.

Solo also makes clear cups which are 16 ounces. If you use these, it will take 8 cups to make one gallon.

### What ratio is cups to gallons?

The ratio of cups to gallons is 1:16, meaning one cup is 1/16th of a gallon.

### How much is a gallon in liters?

One gallon is equivalent to 3.78 liters.