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