Watt hours to kilowatt hours converter on this page calculates how many kilowatt hours are in 'X' watt hours (where 'X' is the number of watt hours to convert to kilowatt hours). In order to convert a value from watt hours to kilowatt hours (from Wh to kWh) simply type the number of Wh to be converted to kWh and then click on the 'convert' button.