Example:
15 horsepower (550 ft·lbf/s) = 11.185498 kW
1 horsepower (550 ft·lbf/s) = 0.7457 kW | 1 kW = 1.341022 horsepower (550 ft·lbf/s)
Conversion Steps:
15 × (745.699871582 / 1000) = 11.185498074