Now that you've collected all of the necessary information, you're ready to start plugging the data into the calculators to determine your true MPG.
MilesGallon.com is the best place to go if you simply want to calculate your MPG based on your odometer reading and the fuel you've pumped.
When you plug the numbers into the fuel mileage calculators below, it'll provide you with an MPG that you should also add to your notepad.
MPG Tune offers not only an MPG calculator in the left menu, but also online tools you can use to log and monitor your fuel usage online.
CarMax - This site is usually for researching new cars to buy, but there's an option to search by MPG as well.
In 2012, Toyota began offering the Prius Plug-In, which is capable of getting 87 miles per gallon (mpg).
The result is how many miles you've gone for every gallon you bought - and that is your real MPG.
When considering wind power for your home, wind speed should be at least 10 mpg on average.
MPGBuddy - You can use a simple form to find your MPG.