After every time you fill your vehicle with fuel see your actual gas mileage by entering the amount of fuel used and distance travelled since last fill up.
An easy to use converter with many features to come.
Future releases may include settings for selecting US gallon or imperial gallon, vehicle selector and the ability to save gas mileage for each vehicle with an average for all previous trips.
If you would like to see any features or improvements please leave a review and I will implement fixes/improvements as possible.
Enjoy!