Use our free litres to UK gallons conversion calculator to see how much fuel it takes to fill your tank. ... Enter either a litre or gallon value below to convert. Litres value (optional) Gallons ...

Actually, thanks to the internet, I now do now know what exactly a gallon is: it’s 4.54609 litres. Oh, for… This meant that in order to work out my car’s MPG , I have to convert the litres I ...