Cubic Inch ConversionsUse this easy and mobile-friendly calculator to convert between Cubic Inches and other units of Volume.
1 Cubic Inch ≈
0.0043290043 U.S. Gallons
Cubic InchesA cubic inch is a unit of volume. It is the size of a cube that is 1 inch on a side. It is approximately 1.1 tablespoons, or about 16.4 cubic centimeters.
Common abbreviations: cu in, in³, in^3
GallonsA U.S. gallon is a unit of volume equal to 128 U.S. fluid ounces, or about 3.785 liters. It should not be confused with the imperial gallon used in the United Kingdom.
Common abbreviations: gal, US gal