**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).

**Inch Cube** (abbreviations: **in3, or ci**): is the volume of a cube with each of its three dimensions (length, width, and depth) being one inch long.

## How to Convert US Gallons to Inches Cube

*Example: How many inches cube are equivalent to 68.92 US gallons?*

As;

1 US gallons = 231 inches cube

68.92 US gallons = Y inches cube

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

Y equals 68.92 times 231 over 1

(i.e.) Y = 68.92 * 231 / 1 = 15920.52 inches cube

Answer is: 15920.52 inches cube are equivalent to 68.92 US gallons.

*Practice Question: Convert the following units into in3:*

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

( i ) 28.09 us gal

( ii ) 87.84 us gal

( iii ) 13.88 us gal