Example:
15 horsepower (550 ft·lbf/s) = 15.208045 metric horsepower
1 horsepower (550 ft·lbf/s) = 1.01387 metric horsepower | 1 metric horsepower = 0.98632 horsepower (550 ft·lbf/s)
Conversion Steps:
15 × (745.699871582 / 735.49875) = 15.208044981