This calculator allows you to convert from Fuel oil equivalent @barrel (US) to Therm (EC) and in a reverse direction. To convert from Fuel oil equivalent @barrel (US) to Therm (EC), enter the amount of Fuel oil equivalent @barrel (US) into the first input and to convert from Therm (EC) to Fuel oil equivalent @barrel (US), enter the amount of Therm (EC) into the second input.