How to Calculate the Cost of Gas Mileage

The cost of gas mileage is the total amount that you spend on gas for each mile you travel in your car. This information is valuable in budgeting your fuel expenses. Because of the fluctuations in the price of gas, this figure will only be accurate for a specific trip. To calculate the cost of gas mileage, you will need to first calculate the number of miles your car travels per gallon of gasoline.

Things You'll Need

• Writing instrument
• Paper
• Car with odometer

Instructions

1. Fill up your gas tank and write down the mileage from your odometer. Alternatively, you can start the trip odometer. Also make note of the per gallon price of the gas you purchase.

2. Write down the new mileage from your odometer when you next stop to get gas. Subtract that number from the first number to calculate the number of miles traveled. If you used the trip odometer, write down that number.

3. Fill up your gas tank and write down the number of gallons that you put in the car.

4. Divide the number of miles in the trip by the number of gallons you put in the car. This number is your miles per gallon.

5. Divide the per gallon price of the gas you purchased on your first fill up by the miles per gallon number. This number is the amount you paid per mile of travel between fill ups.

References

• Money-Zine.com: Gas Mileage Calculator