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