Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert volume measurements from cubic inch to gallon [US, fluid] and gallon [US, fluid] to cubic inch.
1 gallon [US, fluid] (gal(us)) = 231 cubic inches (in3)
1 cubic inch (in3) = 0.004329 gallons [US, fluid] (gal(us))