# Gallons to Cubic Inches Conversion

Enter the volume in gallons below to get the value converted to cubic inches.

**Results in Cubic Inches:**

## How to Convert Gallons to Cubic Inches

To convert a gallon measurement to a cubic inch measurement, multiply the volume by the conversion ratio.

Since one gallon is equal to 231 cubic inches, you can use this simple formula to convert:

The volume in cubic inches is equal to the gallons multiplied by 231.

**For example,**here's how to convert 5 gallons to cubic inches using the formula above.

### How Many Cubic Inches are in a Gallon?

There are **231** cubic inches in a gallon, which is why we use this value in the formula above.

1 gal = 231 in³

Gallons and cubic inches are both units used to measure volume. Keep reading to learn more about each unit of measure.

## Gallons

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.^{[1]} The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as *gal*; for example, 1 gallon can be written as 1 gal.

## Cubic Inches

A cubic inch is a unit of volume equal to the space consumed by a cube with sides that are one inch in all directions.
One cubic inch is equivalent to about 16.387 cubic centimeters or 0.554 fluid ounces.^{[2]}

The cubic inch is a US customary and imperial unit of volume. A cubic inch is sometimes also referred to as a cubic in. Cubic inches can be abbreviated as *in³*, and are also sometimes abbreviated as *cu inch*, *cu in*, or *CI*. For example, 1 cubic inch can be written as 1 in³, 1 cu inch, 1 cu in, or 1 CI.

## Gallon to Cubic Inch Conversion Table

Gallons | Cubic Inches |
---|---|

1 gal | 231 in³ |

2 gal | 462 in³ |

3 gal | 693 in³ |

4 gal | 924 in³ |

5 gal | 1,155 in³ |

6 gal | 1,386 in³ |

7 gal | 1,617 in³ |

8 gal | 1,848 in³ |

9 gal | 2,079 in³ |

10 gal | 2,310 in³ |

11 gal | 2,541 in³ |

12 gal | 2,772 in³ |

13 gal | 3,003 in³ |

14 gal | 3,234 in³ |

15 gal | 3,465 in³ |

16 gal | 3,696 in³ |

17 gal | 3,927 in³ |

18 gal | 4,158 in³ |

19 gal | 4,389 in³ |

20 gal | 4,620 in³ |

21 gal | 4,851 in³ |

22 gal | 5,082 in³ |

23 gal | 5,313 in³ |

24 gal | 5,544 in³ |

25 gal | 5,775 in³ |

26 gal | 6,006 in³ |

27 gal | 6,237 in³ |

28 gal | 6,468 in³ |

29 gal | 6,699 in³ |

30 gal | 6,930 in³ |

31 gal | 7,161 in³ |

32 gal | 7,392 in³ |

33 gal | 7,623 in³ |

34 gal | 7,854 in³ |

35 gal | 8,085 in³ |

36 gal | 8,316 in³ |

37 gal | 8,547 in³ |

38 gal | 8,778 in³ |

39 gal | 9,009 in³ |

40 gal | 9,240 in³ |

## References

- National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
- National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf