Weight units energy

Coal and oil products are measured both in kilograms and in cubic metres of natural gas equivalents.
Calculating weight from volume units of oil products:
- LPG: 1 litre = 0.53 kilogram;
-Naphtha: 1 litre = 0.75 kilogram;
- Oil-aromatics: 1 litre = 0.75 kilogram;
- Aviation fuel: 1 litre = 0,80 kilogram;
- Motor fuel: 1 litre = 0.745 kilogram;
- Other light oils: 1 litre = 0.75 kilogram;
- Petroleum: 1 litre = 0.79 kilogram;
- Gas, diesel, light fuel oil: 1 litre = 0.84 kilogram;
- Heavy fuel oil: 1 litre = 0,96 kilogram;
- Lubricants: 1 litre = 0.88 kilogram.

Calculating weight from cubic metres of natural gas equivalents:
- LPG: 1 m3 ae = 0.700 kilogram;
- Natural gas: 1 m3 = 0,829 kilogram;
- Other gas: variable dependent on composition.