Calculate Fuel Cost Per Mile
Compare Vehicles
Compare fuel costs across different vehicles to see potential savings.
Vehicle 1
Vehicle 2
Vehicle 3
How It Works
Calculating fuel cost per mile is straightforward once you know your vehicle's fuel economy and current fuel prices.
Cost per Mile = Fuel Price per Gallon / Miles per Gallon (MPG)
Example:
Fuel Price: $3.50/gallon
Vehicle MPG: 25 MPG
Cost per Mile = $3.50 / 25 = $0.14 per mile
For Trip Costs:
- Gallons Needed = Trip Distance / MPG
- Total Fuel Cost = Gallons Needed × Fuel Price per Gallon
For Annual Costs:
- Annual Fuel Cost = (Annual Miles / MPG) × Fuel Price per Gallon
- Or simply: Annual Miles × Cost per Mile
Average MPG by Vehicle Type
Use this reference table to estimate fuel economy if you don't know your exact MPG. Actual values vary significantly based on model, year, and driving conditions.
| Vehicle Type | Average MPG | Cost per Mile* | Cost per 100 Miles* |
|---|---|---|---|
| Large Truck / SUV | 14-18 MPG | $0.19 - $0.25 | $19 - $25 |
| Mid-size Truck / SUV | 18-22 MPG | $0.16 - $0.19 | $16 - $19 |
| Full-size Sedan | 22-28 MPG | $0.13 - $0.16 | $13 - $16 |
| Mid-size Sedan | 25-32 MPG | $0.11 - $0.14 | $11 - $14 |
| Compact Car | 30-38 MPG | $0.09 - $0.12 | $9 - $12 |
| Hybrid Sedan | 45-55 MPG | $0.06 - $0.08 | $6 - $8 |
| Plug-in Hybrid | 50-80 MPGe | $0.04 - $0.07 | $4 - $7 |
| Electric Vehicle | 90-130 MPGe | $0.03 - $0.05** | $3 - $5** |
*Assuming $3.50/gallon fuel price. **Electric cost based on $0.13/kWh electricity rate converted to MPGe equivalent.
Tips for Improving Fuel Economy
Small changes in driving habits and vehicle maintenance can significantly reduce your cost per mile.
Maintain Proper Tire Pressure
Under-inflated tires can reduce fuel economy by up to 3%. Check tire pressure monthly and maintain manufacturer-recommended PSI.
Avoid Aggressive Driving
Rapid acceleration and hard braking can lower MPG by 15-30% on highways and 10-40% in stop-and-go traffic. Drive smoothly.
Reduce Speed on Highways
Fuel economy decreases rapidly above 50 mph. Each 5 mph over 50 is like paying an extra $0.20 per gallon for gas.
Remove Excess Weight
An extra 100 pounds in your vehicle can reduce MPG by up to 1%. Clean out unnecessary items from your trunk and cabin.
Use Cruise Control
On highways, cruise control maintains constant speed and can improve fuel economy by 7-14% compared to variable speeds.
Regular Maintenance
A well-maintained engine with clean air filters, fresh oil, and proper tune-ups can improve MPG by 4-40% depending on the issue.
Minimize Idling
Idling wastes fuel and gets 0 MPG. Turn off your engine if you'll be stopped for more than 60 seconds (except in traffic).
Plan Your Routes
Combine errands into one trip and plan efficient routes. Several short trips starting with a cold engine use twice as much fuel.
Understanding Total Driving Costs
While fuel cost per mile is an important metric, it's only part of the total cost of vehicle ownership.
IRS Standard Mileage Rate
For 2024, the IRS standard mileage rate is $0.67 per mile. This rate includes all vehicle operating costs:
- Fuel - typically 25-35% of total cost ($0.17-$0.23/mile)
- Depreciation - largest component at 35-45% ($0.23-$0.30/mile)
- Insurance - approximately 15-20% ($0.10-$0.13/mile)
- Maintenance & Repairs - roughly 10-15% ($0.07-$0.10/mile)
- Tires, Registration, Taxes - remaining portion
Gas vs Electric Cost Comparison
While electric vehicles have lower "fuel" costs (electricity vs gasoline), consider the full picture:
- Electricity cost averages $0.03-$0.05 per mile (at $0.13/kWh)
- Gasoline cost averages $0.10-$0.20 per mile (depending on MPG)
- Annual savings for 12,000 miles: $840-$2,040 on fuel alone
- However, EVs typically cost $5,000-$15,000 more upfront
- Payback period varies from 3-10 years depending on driving habits
Privacy & Limitations
- All calculations run entirely in your browser -- nothing is sent to any server.
- Results are estimates for planning purposes. Actual fuel consumption varies based on driving conditions, vehicle condition, weather, terrain, and driving style.
- MPG values are approximate. Check your vehicle's actual fuel economy using the trip computer or manual calculation over several tanks.
- Fuel prices vary by location and change frequently. Use current local prices for accurate results.
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Fuel Cost Per Mile Calculator FAQ
How do you calculate fuel cost per mile?
Divide the price per gallon by your vehicle's miles per gallon (MPG). For example, if gas costs $3.50/gallon and your car gets 25 MPG, your fuel cost per mile is $3.50 / 25 = $0.14 per mile.
What is the average fuel cost per mile in the US?
With average gas prices around $3.50/gallon and average fuel economy of 25.4 MPG, the typical fuel cost per mile is about $0.14. However, this varies significantly by vehicle type -- a truck at 15 MPG costs about $0.23/mile while a hybrid at 50 MPG costs about $0.07/mile.
How does fuel cost per mile compare between gas and electric?
Electric vehicles typically cost $0.03-0.05 per mile for electricity, compared to $0.10-0.25 per mile for gasoline vehicles. However, the total cost of ownership also includes purchase price, maintenance, and insurance.
Does fuel cost per mile include maintenance?
No, fuel cost per mile only covers fuel expenses. The IRS standard mileage rate ($0.67/mile for 2024) covers fuel plus depreciation, insurance, maintenance, and repairs. Fuel typically represents 30-40% of total per-mile driving costs.