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