Imperial Gallon to US Gallon Converter
Imperial Gallon to US Gallon Formula
Conversion explanation: Multiply the value in Imperial Gallon by 1.2009499255 to get the equivalent value in US Gallon.
Popular volume unit conversions
What is Imperial Gallon to US Gallon Converter
This utility converts volume from Imperial gallons (imp gal) to US liquid gallons (US gal). It applies the standard conversion factor where 1 Imperial gallon equals approximately 1.20095 US gallons. For related calculations, you can also check our liter to milliliter conversion tool.
Definitions of Imperial Gallon and US Gallon
What is Imperial Gallon?
An imperial gallon is a unit of liquid volume used in the British imperial system equal to approximately 4.546 liters. It was historically used throughout the British Commonwealth. For related unit metrics, you can use our milliliter to liter conversion tool.
What is US Gallon?
A US gallon is a unit of liquid volume in the United States customary system equal to 231 cubic inches. It is frequently used for fuel and large beverage containers. If you need to make other calculations, see our liter to us gallon conversion tool.