**Definitions:**

**Millimeter Cube** (abbreviation: **mm3**): is the SI derived unit of volume. It is the volume of a cube with edges one millimeter in length.

**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 Millimeters Cube to Imperial Gallons

*Example: How many imperial gallons are equivalent to 81.02 millimeters cube?*

As;

1 millimeters cube = 2.2002200220022E-7 imperial gallons

81.02 millimeters cube = Y imperial gallons

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

Y equals 81.02 times 2.2002200220022E-7 over 1

(i.e.) Y = 81.02 * 2.2002200220022E-7 / 1 = 1.7826182618262E-5 imperial gallons

Answer is: 1.7826182618262E-5 imperial gallons are equivalent to 81.02 millimeters cube.

*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 ) 79.58 mm3

( ii ) 20.11 mm3

( iii ) 37.52 mm3