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