This calculator allows you to convert from Kilocalorie (IT)/hour to Millijoule/second and in a reverse direction. To convert from Kilocalorie (IT)/hour to Millijoule/second, enter the amount of Kilocalorie (IT)/hour into the first input and to convert from Millijoule/second to Kilocalorie (IT)/hour, enter the amount of Millijoule/second into the second input.