Kilo-electron volts to microjoules conversion calculator shown above calculates how many microjoules are in 'X' kilo-electron volts (where 'X' is the number of kilo-electron volts to convert to microjoules). In order to convert a value from kilo-electron volts to microjoules (from keV to μJ) simply type the number of keV to be converted to μJ and then click on the 'convert' button.