The volume of gascontaining fuel tanks (like natural gas, for example) is commonly measured in cubic meters. This simply refers to the amount of space that fuel source is taking up. If you want to convert the standard cubic meter measurement of your gas to another type of measurement, you can do so by performing some basic math using a calculator.
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Multiply the number of cubic meters of gas you have by 35.31 to convert it to cubic feet. For example, if you have 4 cubic meters of gas, 4 x 35.31 = 141.24 cubic feet. You may need to perform this measurement if you're converting from the metric system into the Imperial system of measurement used in the United States.

Multiply the number of cubic meters of gas you have by 1.31 to convert it to cubic yards. A cubic yard of gas is slightly smaller in volume than a cubic meter of the same substance. This will be another conversion you may need to perform if you're converting from the metric system into the Imperial system of measurement. For example, if you have 4 cubic meters of gas, 4 x 1.31 = 5.24 cubic yards of gas.

Multiply the number of cubic meters of gas you have by 264.17 to convert it to gallons. This calculation may be required if you're attempting to compare the cost of a gas fuel like natural gas or a liquid fuel like kerosene or propane. For example, if you have 4 cubic meters of gas, 4 x 264.17 = 1,056.68 gallons of gas.