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