**Definitions:**

**US Gallon** (abbreviation: **US gal**): is a unit of measurement for liquid capacity in the US customary units. Three significantly different sizes are in current use: the imperial gallon defined as 4.54609 litres, which is used in the United Kingdom, Canada, and some Caribbean nations; the US gallon defined as 231 cubic inches (3.785 L), which is used in the US and some Latin American and Caribbean countries; and the least-used US dry gallon defined as 1/8 US bushel (4.405 L).

**Imperial Gallon** (abbreviations: **imp. gal, or imp gal**): is a unit of measurement for liquid capacity in the British imperial systems of measurement. Three significantly different sizes are in current use: the imperial gallon defined as 4.54609 litres, which is used in the United Kingdom, Canada, and some Caribbean nations; the US gallon defined as 231 cubic inches (3.785 L), which is used in the US and some Latin American and Caribbean countries; and the least-used US dry gallon defined as 1/8 US bushel (4.405 L).

## How to Convert US Gallons to Imperial Gallons

*Example: How many imperial gallons are equivalent to 54.31 US gallons?*

As;

1 US gallons = 0.832701 imperial gallons

54.31 US gallons = Y imperial gallons

Assuming Y is the answer, and by criss-cross principle;

Y equals 54.31 times 0.832701 over 1

(i.e.) Y = 54.31 * 0.832701 / 1 = 45.22399131 imperial gallons

Answer is: 45.22399131 imperial gallons are equivalent to 54.31 US gallons.

*Practice Question: Convert the following units into imp. gal:*

N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.

( i ) 97.44 us gal

( ii ) 71.75 us gal

( iii ) 22.01 us gal