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Questions and answers on how to convert things from one unit or system to another

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Tonnes to cubic metres

Tue Apr 26, 2005 4:34 pm

Okay, so how many cubic metres would 2720 tonnes of fuel occupy?[/i][/b]

Tue Apr 26, 2005 6:08 pm

You have to know the density or specific gravity of the fuel, which varies from gasoline, to fuel oil. But the specific gravity is usually between 0.7-0.9. Crude oil (unprocessed) is more likely in the range 0.8-1.

Using 0.8 as a rough estimate figure 800 kg or 0.8 metric tons per cubic meter. If you need a more precise figure, you have to get a density value for the fuel.

Tue Apr 26, 2005 6:14 pm

Thankyou for that. I will try to obtain a precise figure for the density and work it out from there.
What is the actual calculation used?

Tue Apr 26, 2005 7:35 pm

Using my example figure of sg = 0.8 (specific gravity is relative to water, which is 1 t/m^3)

2720 tonnes fuel x 1 m^3/0.8 tonnes = 3400 m^3

You just divide by the density, but you may need some units conversion depending on the density units used. However, 1 kg/L = 1 t/m^3 = 1000 kg/m^3