Gallons to Cubic Inches Conversion

How many cubic inches in a gallon?

1 US fluid gallon = 231 cubic inches (in3). 1 US dry gallon = 268.8025 cubic inches. 1 Imperial gallon = 277.4194 cubic inches.

Round:
Enter US Fluid Gallon
Enter Cubic Inch

1 Gallon [Fluid, US] = 231 Cubic Inches
1 Gallon [Dry, US] = 268.802501 Cubic Inches
1 Gallon [UK] = 277.419432 Cubic Inches

Gallon is an imperial and US Customary unit. There is one type of gallon in imperial system and 2 types (liquid and dry) in US Customary system. The abbreviation is "gal".

Cubic Inch is an imperial and US Customary volume unit. It is defined as a cube with all sides are one inch in length. The abbreviation is "in3".

Create Custom Conversion Table
To create your own custom conversion table click "Create Table" botton. To change values, you may enter a "Start" value (1, 2.5, 5 etc), select a an "Increment" value (0.01, 5, 100 etc) and select an "Accuracy" value to round the result.