1 cc = 1 ml 1,000 cc = 1 litre 1 meter = 100 centimeters. 1 m^3 =100cm x100cm x100cm or 1,000,000cc. Divided by 1,000cc/ litre = 1,000 litre/m^3. So multiply m^3 x 1,000 to convert to litres.
LPG Gas Measured by meter in m3 but billed in litres how do they convert m3 back to litres?