Units calculator

IER - Conversion factors for Energy Units

Please enter amounts or values, which you want to calculate, and click afterwards on the button "calculate".
You can enter values of maximum 5 digits (including decimal point) (i.e. between 0.001 and 99999).

  kJ kcal kWh kg SKE kg RÖE m³ Erdgas
kg SKE 
kg RÖE
m³ Erdgas



300 kilowatt hour (kWh) x 0.123 = 36.9 kg coal equivalent (ce)
36.9 kg coal equivalent (ce) x 8.14 = 300 kilowatt hour(kWh)


Values are related basically to the heating value (= "lower heating value")

All conversion factors according to the definition of the Federal Ministry of Economics and Technology publishe in "Energy Facts 2002 - National and international Developments "


A further conversion calculator is availabe on the server of: