This calculator allows you to convert from Horsepower (550 ft*lbf/s) to Kilojoule/minute and in a reverse direction. To convert from Horsepower (550 ft*lbf/s) to Kilojoule/minute, enter the amount of Horsepower (550 ft*lbf/s) into the first input and to convert from Kilojoule/minute to Horsepower (550 ft*lbf/s), enter the amount of Kilojoule/minute into the second input.