Horsepower-hour to tons of coal equivalent conversion calculator above calculates how many tons of coal equivalent are in 'X' horsepower-hour (where 'X' is the number of horsepower-hour to convert to tons of coal equivalent). In order to convert a value from horsepower-hour to tons of coal equivalent (from hph to TCE) just type the number of hph to be converted to TCE and then click on the 'convert' button.