Horsepower-hour to cubic feet of natural gas converter above calculates how many cubic feet of natural gas are in 'X' horsepower-hour (where 'X' is the number of horsepower-hour to convert to cubic feet of natural gas). In order to convert a value from horsepower-hour to cubic feet of natural gas just type the number of hph to be converted to cubic feet of natural gas and then click on the 'convert' button.