Imperial Gallon Conversions

Use this easy and mobile-friendly calculator to convert between Imperial Gallons and other units of Volume.

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1 Imperial Gallon ≈

1.2009499 U.S. Gallons

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Imperial Gallons

An Imperial gallon is a unit of volume sometimes used in the British commonwealth. It is exactly 4.54609 liters and is about 20% larger than a U.S. gallon.

Abbreviation: imp gal

Gallons

A U.S. gallon is a unit of volume equal to 128 U.S. fluid ounces, or about 3.785 liters. It should not be confused with the imperial gallon used in the United Kingdom.

Common abbreviations: gal, US gal