Celsius heat units (IT) to kilojoules conversion calculator above calculates how many kilojoules are in 'X' Celsius heat units (IT) (where 'X' is the number of Celsius heat units (IT) to convert to kilojoules). In order to convert a value from Celsius heat units (IT) to kilojoules (from CHU to kJ) type the number of CHU to be converted to kJ and then click on the 'convert' button.