Free fuel cost calculator — calculate monthly and annual fuel costs based on MPG, miles driven, and gas prices. Plan road trip fuel budgets.
Fuel economy matters more than you think. The difference between 20 MPG and 30 MPG can save you $1,000+ per year.
Factor fuel costs into your total car budget. A cheap car with terrible MPG can cost more to own than a pricier fuel-efficient model.
Fuel is the second-largest ongoing cost of vehicle ownership after depreciation. Choosing a fuel-efficient vehicle saves thousands over the ownership period.
Key Features & Benefits
- Annual Fuel Budget — Calculate your yearly fuel cost based on your vehicle's MPG, annual miles driven, and local gas prices.
- Trip Cost Estimator — Plan road trips with accurate fuel cost estimates — enter distance, vehicle MPG, and gas price along your route.
- Vehicle Comparison — Compare fuel costs between two vehicles to see annual savings from better fuel economy.
- Gas Price Tracking — Use current gas prices by region to get the most accurate fuel cost calculations.
Frequently Asked Questions
How much does the average American spend on gas per year?
The average American drives about 13,500 miles/year. At 25 MPG and $3.50/gallon, that's roughly $1,890/year on fuel. Vehicles with poor fuel economy (15 MPG) cost about $3,150/year — a $1,260 annual difference.
How do I calculate my fuel cost per mile?
Divide the price per gallon by your vehicle's MPG. For example, $3.50/gallon ÷ 25 MPG = $0.14 per mile. For a daily 30-mile commute, that's $4.20/day or about $1,092/year just for commuting.
Is it worth buying a more fuel-efficient car?
If you drive 15,000+ miles/year, upgrading from 20 MPG to 35 MPG saves about $1,125/year at $3.50/gallon. Over 5 years, that's $5,625 in fuel savings — which can offset a higher purchase price.
How much can I save by switching to a hybrid?
A typical hybrid gets 45-55 MPG vs 25-30 MPG for a comparable gas car. At 15,000 miles/year and $3.50/gallon, that is about $955 vs $1,750 annually — a savings of roughly $795/year or $3,975 over 5 years. The fuel savings often offset the hybrid premium within 3-4 years.
Does driving style affect fuel costs significantly?
Yes. Aggressive driving with rapid acceleration, hard braking, and speeding can reduce fuel economy by 15-33% on the highway and 10-40% in stop-and-go traffic. Smooth driving habits, proper tire inflation, and regular maintenance can save $200-$500 annually in fuel costs.