How Can One Calculate Car Gas Mileage?


Quick Answer

Calculating the gas mileage of a vehicle can be done either by filling a tank and then manually tracking the distance traveled after filling up, or by resetting the car's trip meter and tracking the distance traveled using that filled tank.

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Full Answer

In order to get an accurate reading on the calculation a user must also record how many gallons it takes to fill a car's gas tank. After filling up, drive until the car's tank is empty again; you can then see how many miles were driven and divide that by the number of gallons that were in the car's tank. For instance, if a tank holds 9.5 gallons and the driver went 250 miles on that tank, the miles per gallon is 250 divided by 9.5 or about 26.3 miles per gallon.

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