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