Kilocalories per second to kilowatts converter above calculates how many kilowatts are in 'X' kilocalories per second (where 'X' is the number of kilocalories per second to convert to kilowatts). In order to convert a value from kilocalories per second to kilowatts (from kcal/s to kW) simply type the number of kcal/s to be converted to kW and then click on the 'convert' button.