How to Convert Cubic Inches to Gallons (US)
To convert cubic inches to gallons (us), divide the value by 230.999.
The Formula
Gallons (US) = Cubic Inches ÷ 230.999
Key Fact
1 gallon (us) = 230.999 cubic inches
Tip: To convert gallons (us) back to cubic inches, multiply by 230.999.