Convert US Gallon to Millimeter Cube (us gal to mm3)

In next fields, kindly type your value in the text box under title [ From: ] to convert from US gallon to millimeter cube (us gal to mm3). As you type your value, the answer will be automatically calculated and displayed in the text box under title [ To: ].


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).

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

How to Convert US Gallons to Millimeters Cube

Example: How many millimeters cube are equivalent to 10.35 US gallons?


1 US gallons = 3785410 millimeters cube

10.35 US gallons = Y millimeters cube

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

Y equals 10.35 times 3785410 over 1

(i.e.) Y = 10.35 * 3785410 / 1 = 39178993.5 millimeters cube

Answer is: 39178993.5 millimeters cube are equivalent to 10.35 US gallons.

Practice Question: Convert the following units into mm3:

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

( i ) 35.48 us gal

( ii ) 21.52 us gal

( iii ) 55.64 us gal

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  • USMA
  • NIST

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