This one has more units than others I have seen, and it is easier to use:
http://www.translatorscafe.com/cafe/units-converter/energy/c/
- Jed
That's no good ... it doesn't convert kWh to Hartrees !!!
Convert kilowatt-hour to Hartrees ( kWh to Ha )
< http://www.conversion-website.com/energy/kilowatt-hour_to_Hartree.html >
