Gas Mileage Calculator
One easy way to calculate gas mileage is to remember the odometer reading or reset the mileage counter when you fill up your gas tank. Next time, when you fill up you gas tank again, obtain the mileage between the two gas fill up based on the odometer reading or the mileage counter. Then divided the mileage by the gas filled in the second time to obtain the MPG (mile per gallon).