home uni uni kontakt contact
unilogo Universität Stuttgart

Links & Data


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 ce kg oe m³ Gas
Kilo joule (kJ)   
Kilo calory (kcal)   
Kilowatt hour(kWh)   
kg coal equivalent (ce)   
kg oil equivalent (oe)
m³ Natural gas



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: