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