The United Nations Conversion Factor Statistics Database

Energy analysis involving interfuel comparison entails the conversion of energy commodities into a standardized unit of measurement. To take into account the differences in heating values of various energy commodities, the conversion factors are often provided to enable conversion from original units to terajoules. The UN conversion factors are expressed in kilocalories per kilogram (Kcal/Kg). The standard conversion factor from kilocalaries to kilojoules is 4.1868. For conversion factors not found in the UNSTAT database, the standard conversion factors given below should be used to multiply the quantity in original units (in thousand metric tons, unless otherwise indicated) to terajoules. Solid Fuels: Hard coal =29.3076 Lignite = 11.2834 Peat = 9.5250 Hard coal (patent fuel) briquettes = 29.3076 Lignite briquettes = 19.6361 Gas coke = 26.3768 Coke-oven coke = 26.3768 Brown coal coke = 19.6361 Liquid Fuels: Crude petroleum = 41.8680 Natural gas liquids = 45.1923 Aviation gasoline = 43.9614 Motor gasoline = 43.9614 Natural gasoline = 44.8992 Jet fuel = 43.1994 Kerosene = 43.1994 Naphtha = 44.1289 White spirit/industrial spirit = 43.2078 Gas-diesel oil = 42.4960 Residual fuel oil = 41.4996 Lubricants = 42.1401 Feedstocks = 43.9405 Plant condensate = 44.3131 Bitumen (asphalt)= 41.8000 Petroleum wax = 43.3334 Petroleum coke = 36.4000 Other petroleum products = 42.4960 Liquefied petroleum gas = 45.5440 Other energy sources: Electricity (million kwh)= 3.6000 Fuelwood (thousand m^3) = 9.7680 Charcoal = 28.8888 Bagasse = 7.7221 Alcohol = 40.0000 Animal wastes = 8.4000 Vegetal wastes = 12.5000 Other non-commercial sources = 8.4000