Cubic Inches to Gallons Converter

Welcome to Omni's cubic inches to gallons converter, which allows you to quickly calculate cubic inches to gallons, and it is you who decides whether it is US gallons or UK gallons! As a bonus, we will show you the cubic inches to gallons formula and explain how to do this conversion by hand. Let's go!

Gallon (gal) is a volume unit, and it can be either a US gallon or UK gallon. A US gallon is exactly 231 cu in (cubic inches, also in³), while a UK gallon is 277.4 cu in. Equivalently, 1 cu in corresponds to 0.0043 US gallon and 0.0036 UK gallon. As you can see, UK gallons are slightly bigger than US gallons.

To convert cubic inches to US gallons:

1. Write down the volume in cubic inches.
2. Multiply this number by 0.0043.
3. That's it! The number you got is the volume expressed in US gallons.

To convert cubic inches to UK gallons:

1. Write down the volume in cubic inches.
2. Multiply this number by 0.0036.
3. That's it! The number you got is the volume expressed in UK gallons.

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