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