How many millimeter Btu are there in 342 cubic meter?

Answer 1

The "BTU" is a unit of energy. The "MM BTU" is a million of them ... still a quantity of energy.

The "cubic meter" is a unit of volume.

BTU and "cubic meter" are used to measure completely different things. They have different

physical dimensions, and neither one can be directly converted into the other one.

You often find them appearing together, though, because if you have some 'volume' of

a gaseous fuel, such as hydrogen or methane, and you know the pressure, then you can

calculate how many BTU of energy you can get out of it by burning it.

If the questioner will name the substance that fills the volume ... and also tell us its pressure ...

then it's possible to begin calculating the quantity of energy available when the substance is burned.

Answer 2

To convert cubic meters to Btu, you need to know the energy density of the material being measured. Without this information, a direct conversion from volume to energy cannot be made.