This application has been designed to very quickly let you know roughly how much a journey is going to cost. The MPG is calculated from my own experience with a Skoda Octavia 1.6 Greenline Diesel. This should allow you to quickly glance at how much a journey will cost approximately depending on how fast you decide to drive. Obviously fuel costs change and cars are different so you can set pence per litre and average mpg in the settings yourself.