How many cubic inches in a gallon?
1 US gallon is equal to 231 cubic inches. To convert gallons to cubic inches, multiply the gallon value by 231.
For example, to find out how many cubic inches there are in 5 gallons, multiply 5 by 231, that makes 1155 cubic inches in 5 gallons.
US gallons to cubic inches formula
cubic inch = gallon * 231
What is a Gallon?
Gallon is an imperial and United States Customary measurement systems volume unit. 1 US fluid gallon = 231 cubic inches. 1 Imperial gallon = 277.419 cubic inches. The symbol is "gal".
Please visit all volume units conversion to convert all volume units.