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