Example:
15 metric horsepower-hour = 37669.59027 Btu (th)
1 metric horsepower-hour = 2511.306018 Btu (th) | 1 Btu (th) = 0.000398 metric horsepower-hour
Conversion Steps:
15 × (2647795.5 / 1054.349999974) = 37669.590269801