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