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