Fuel Cost Calculator
Calculate annual fuel costs, cost per mile and compare fuel expenses between two vehicles.
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Frequently Asked Questions
How do I calculate fuel cost per mile?
Fuel cost per mile = Fuel price per gallon divided by MPG. At $4.47/gallon and 28 MPG: $4.47 / 28 = $0.16 per mile. For 15,000 miles/year that is $2,395 annually. The IRS standard mileage rate of $0.725/mile (2026) covers fuel plus depreciation, insurance and maintenance.
How much do I save by switching to a more fuel efficient car?
Upgrading from 25 MPG to 40 MPG at $4.47/gallon driving 15,000 miles/year saves about $1,006/year in fuel. Over 5 years that is $5,029 in fuel savings. Compare this to the premium price of a more efficient vehicle to calculate your payback period.
How do electric vehicles compare on fuel cost?
EVs cost roughly $0.03-$0.05 per mile in electricity vs $0.11-$0.18 per mile for gasoline cars. At 15,000 miles/year an EV saves $900-$2,250/year in fuel. However higher purchase price (though falling), charging infrastructure and range considerations affect total ownership cost comparison.