Cubic Inches To Gallons Conversion (in³ To Gal) - Inch Calculator

How to Convert Cubic Inches to Gallons

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Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Cubic Inches to Gallons Converter. Inch Calculator. Retrieved November 23, 2024, from https://www.inchcalculator.com/convert/cubic-inch-to-gallon/

To convert a measurement in cubic inches to a measurement in gallons, divide the volume by the following conversion ratio: 231 cubic inches/gallon.

Since one gallon is equal to 231 cubic inches, you can use this simple formula to convert:

gallons = cubic inches ÷ 231

The volume in gallons is equal to the volume in cubic inches divided by 231.

For example, here's how to convert 500 cubic inches to gallons using the formula above. gallons = (500 in³ ÷ 231) = 2.164502 gal

Cubic inches and gallons are both units used to measure volume. Keep reading to learn more about each unit of measure.

What Is a Cubic Inch?

A cubic inch is a unit of volume equal to the space consumed by a cube with sides that are one inch in all directions. One cubic inch is equivalent to about 16.387 cubic centimeters or 0.554 fluid ounces.[1]

The cubic inch is a US customary and imperial unit of volume. A cubic inch is sometimes also referred to as a cubic in. Cubic inches can be abbreviated as in³, and are also sometimes abbreviated as cu inch, cu in, or CI. For example, 1 cubic inch can be written as 1 in³, 1 cu inch, 1 cu in, or 1 CI.

Learn more about cubic inches.

What Is a Gallon?

The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[1] The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.

Learn more about gallons.