Reference unit for the energetic evaluation of various energy carriers. 1 kg coal equivalent corresponds to a value specified as 7 000 kilocalories (7 000 kcal ≈ 29.3 MJ ≈ 8.141 kWh) and thus pproximately the calorific value of hard coal which, depending on the type, amounts to between 29.3 MJ/kg (gas-flame coal) and 33.5 MJ/kg (anthracite). 1 kg gasoline 1.59 kg coal equivalent, 1 kg fuel oil 1.52 kg coal equivalent, 1 m3 natural gas 1.35 kg coal equivalent, 1 kg anthracite 1.14 kg coal equivalent, 1 kg hard coal 1.00 kg coal equivalent, 1 kg hard coal coke 0.97 kg coal equivalent, 1 kg lignite briquette 0.72 kg coal equivalent, 1 m3 town gas 0.60 kg coal equivalent, 1 kg firewood 0.57 kg coal equivalent, 1 kg fire peat 0.56 kg coal equivalent, 1 kg crude lignite 0.34 kg coal equivalent, 1 kWh 0.123 kg coal equivalent. During the complete fission of 1kg U-235, 19 billion kilocalories are released, i.e. 1 kg uranium-235 corresponds to 2.7 million kg coal equivalent