A cubic metre of gas on earth will not have a mass of 1 kg.
1 Liter = 0.001 cubic meter. It doesn't matter what it has or doesn't have in it, or even if it's a total vacuum.
The volume of gas in a cubic meter is one cubic meter. But perhaps that is not the real question?
A cubic metre of gas at normal temperature and pressure has a mass of 44.643 times the molecular weight of the gas in grams. So a cubic metre of hydrogen is 89.3 grams while a cubic metre of CO2 is 1964 grams. If the volume is 22.4 litres, the mass in grams equals the molecular weight.
There are 1,000 liters of liquid gas in 1 cubic meter of LPG gas. The answer would be different if the conversion is from pressurized volume to unpressurized volume.
Multiply cubic meters by 1,000 to get liters.
That depends on the pressure and temperature of the air in the cubic meter. Any time you change the pressure or the temperature of a gas, you change the number of molecules in one cubic meter of it.
Each cubic meter comprises 1,000 liters. Therefore, cubic meters x 1,000 = liters.
when convert from cubic meter to tonns multply by 0.455
Every cubic meter has 1000 liters.
1 cubic metre = 1000 litres.
You will have a gas meter to give this reading. If it doesn't give cubic feet directly it should have a conversion factor on the meter. So you just read the meter on the right days.
Litre or cubic meter for helium as a gas; litres for helium as a liquid.