Gallon to Cubic Inch Converter (gal to in³)

How to Convert Gallon to Cubic Inch

Formula: Cubic Inch = Gallon × 231

Example: 1 gal = 231 in³

You can also use the interactive converter above. Simply enter any Gallon value and the equivalent Cubic Inch value will appear instantly. Click the ⇄ button to reverse the conversion.

Here is a closer look at what Gallon and Cubic Inch are used for, plus answers to the questions people ask most about this conversion.

What is Gallon and Cubic Inch?

A Gallon (gal) is a US customary volume unit, equal to about 3.785 liters, used for fuel and large liquid measures.

A Cubic Inch (cu in) is a small imperial volume unit, historically used to describe car engine size in the US.

Real World Uses of Gallon to Cubic Inch Conversion

• Gallon: Commonly used for pricing and pumping fuel at US gas stations.
• Cubic Inch: Commonly used for describing classic American car engine displacement.

Frequently Asked Questions

What is the formula to convert Gallon to Cubic Inch?

The formula is: Cubic Inch = Gallon x 231. Multiply any Gallon value by 231 to get the equivalent in Cubic Inch.

What is 1 Gallon in Cubic Inch?

1 gal = 231 cu in.

How many Gallon are in 1 Cubic Inch?

1 cu in = 0.00432900432900433 gal.

Is Gallon bigger or smaller than Cubic Inch?

Gallon is bigger than Cubic Inch. 1 Gallon = 231 cu in.