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