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