This calculator allows you to convert from Ounce-force inch to Horsepower (metric) hour and in a reverse direction. To convert from Ounce-force inch to Horsepower (metric) hour, enter the amount of Ounce-force inch into the first input and to convert from Horsepower (metric) hour to Ounce-force inch, enter the amount of Horsepower (metric) hour into the second input.