Fuel Efficiency Converter allows you to convert fuel efficiency between Miles per Gallon (mpg), Kilometers per Liter (km/l), and Liters per 100 Kilometers (l/100km). Enter the fuel efficiency, select the 'From' unit and the 'To' unit, then click 'Convert'. Our calculator will provide you with the equivalent fuel efficiency in the desired unit, making fuel efficiency conversions quick and easy.