Gas For Less Money

Gas Mileage Calculator

How to Calculate Your Gas Mileage

Odometer Method - Calculate your mpg in 4 easy steps.

Step 1. Fill your vehicle’s gas tank all the way, and write down the odometer mileage reading.

Step 2. The next time you fill up, write down exactly how much gas it took i.e. 8.25 gallons.

Step 3. Note the new odometer reading.

Step 4. Subtract the first odometer reading from the second one. This tells you how many miles you went between these two fill-ups.

Step 5. Now divide the number of miles you went by the number of gallons you just filled up with. This will give you your precise mpg.

EXAMPLE:

1st odometer reading: 41,200
2nd odometer reading: 41,330
2nd fill-up: 5.1 gallons

41,200 minus 41,330 = 130 miles divided by 5.1 gallons = 25.5 mpg

If your car or truck has a “trip meter”, you can simply re-set it to zero at the first fill-up, then see how many miles you drove at the second fill-up, and use the same formula:

Number of miles driven divided by the number of gallons at 2nd fill-up