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