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