BTU (IT) per hour to horsepower (metric) conversion calculator shown above calculates how many horsepower (metric) are in 'X' BTU (IT) per hour (where 'X' is the number of BTU (IT) per hour to convert to horsepower (metric)). In order to convert a value from BTU (IT) per hour to horsepower (metric) (from BTU/h to hp) type the number of BTU/h to be converted to hp and then click on the 'convert' button.