**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.

**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).

## How to Convert Millimeters Cube to US Gallons

*Example: How many US gallons are equivalent to 28.69 millimeters cube?*

As;

1 millimeters cube = 2.6417217685799E-7 US gallons

28.69 millimeters cube = Y US gallons

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

Y equals 28.69 times 2.6417217685799E-7 over 1

(i.e.) Y = 28.69 * 2.6417217685799E-7 / 1 = 7.5790997540557E-6 US gallons

Answer is: 7.5790997540557E-6 US gallons are equivalent to 28.69 millimeters cube.

*Practice Question: Convert the following units into us gal:*

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

( i ) 30.29 mm3

( ii ) 22.93 mm3

( iii ) 55.32 mm3