FinanceCalcs
Fuel Cost Per Mile Calculator
How much does it actually cost to drive a mile? Enter your vehicle's fuel efficiency and local gas price to calculate your exact cost per mile, total trip cost, and what you spend on fuel annually. Compare up to two vehicles side by side.
Enter your MPG and gas price — get cost per mile, trip total, and annual fuel cost instantly.
Fuel Cost Per Mile
My Car• 30 MPG
$0 per mile
Trip Cost at Common Distances
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Annual Cost at Different Mileages
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"Every mile you drive costs money. Knowing exactly how much is the first step to spending less of it."
— Automotive Finance Principle
Understanding fuel cost per mile
Fuel cost per mile is simply your fuel price divided by your fuel economy: Cost/Mile = Gas Price ÷ MPG. At $3.50/gallon and 30 MPG, every mile costs $0.117. At 28 MPG (the US new car average), every mile costs $0.125. At 20 MPG (typical SUV or truck), every mile costs $0.175. These differences add up enormously over annual driving distances.
At 15,000 miles per year, the difference between a 20 MPG and 30 MPG vehicle costs $875/year in fuel alone at $3.50/gallon. Over 5 years that's $4,375 — a significant factor in vehicle comparison decisions. The IRS standard mileage rate (67 cents/mile for 2024) covers all vehicle operating costs including depreciation, but fuel alone typically accounts for 25–35% of total per-mile cost.
Electric vehicle fuel costs are calculated differently: Cost/Mile = Electricity Rate ($/kWh) ÷ Miles per kWh. A typical EV gets 3–4 miles per kWh; at $0.14/kWh the cost per mile is $0.035–$0.047 — roughly 3–4× cheaper than a 30 MPG gas vehicle at $3.50/gallon.
lightbulb Fuel Cost by Vehicle Type
| Vehicle Type | Typical MPG | Cost/Mile* | Annual Cost* |
|---|---|---|---|
| Compact car | 35–40 | $0.088–$0.10 | $1,313–$1,500 |
| Midsize sedan | 28–32 | $0.109–$0.125 | $1,641–$1,875 |
| SUV / Crossover | 22–28 | $0.125–$0.159 | $1,875–$2,386 |
| Truck / Large SUV | 15–20 | $0.175–$0.233 | $2,625–$3,500 |
| Hybrid | 45–55 | $0.064–$0.078 | $955–$1,167 |
| Electric (EV) | 3–4 mi/kWh | $0.035–$0.047 | $525–$700 |
*At $3.50/gallon gas, $0.14/kWh electric, 15,000 miles/year.
Fuel Cost FAQs
What is the IRS mileage rate and how does it differ?
The IRS standard mileage rate (67 cents/mile in 2024) is the rate at which you can deduct business driving from federal taxes. It covers all vehicle operating costs: fuel, oil, tires, maintenance, insurance, registration, and depreciation. Fuel typically represents 25–35% of this rate. This calculator shows fuel cost only — total cost per mile including all expenses is much higher.
How much does 1 MPG of improvement save?
It depends on your current MPG. Going from 15 to 16 MPG saves $0.015/mile at $3.50/gallon — much more than going from 30 to 31 MPG ($0.004/mile). The savings per additional MPG diminish as efficiency increases. This is why the biggest fuel savings come from moving from low-efficiency vehicles to moderate efficiency, not from optimizing already-efficient cars.
What gas price should I use?
Use the current average price in your area. GasBuddy.com and the AAA fuel gauge report track real-time national and regional averages. For planning purposes, many financial advisors recommend modeling at $3.50–$4.50/gallon to capture a reasonable range of future prices.
Does highway vs. city driving matter?
Significantly. Most vehicles achieve 15–30% better fuel economy on the highway vs. city driving. The EPA rates vehicles separately for city and highway, with a combined estimate. Your actual MPG depends on your driving mix. Enter your real-world average MPG for the most accurate calculation — this often differs from the EPA sticker by 5–15%.
Fuel economy terminology
MPG (Miles Per Gallon)
The standard US measure of fuel efficiency. Higher MPG means lower fuel cost per mile. The US fleet average for new cars is approximately 28 MPG (combined city/highway). Note: European vehicles use L/100km (liters per 100 kilometers) — divide 235 by L/100km to convert to MPG.
Miles Per kWh (Electric)
The electric vehicle equivalent of MPG. Most EVs achieve 3–4.5 miles per kWh. Multiply miles per kWh by electricity cost per kWh to get the inverse of cost-per-mile. Example: 4 mi/kWh at $0.14/kWh = $0.035/mile fuel cost.
IRS Mileage Rate
The per-mile deduction rate set annually by the IRS for business driving. For 2024 it's 67 cents/mile. This covers all vehicle costs including depreciation and is much higher than fuel cost alone. Business owners and self-employed individuals can deduct this amount for business miles driven.
Break-Even Mileage
The number of miles at which the fuel savings from a more efficient vehicle offset its higher purchase price. If a hybrid costs $4,000 more than a comparable gas car but saves $900/year in fuel, the break-even is 4.4 years (or ~66,000 miles at 15,000 mi/yr). This is a key metric in vehicle purchase decisions — use the Gas vs. Electric calculator for a full comparison.
Disclaimer: All calculators on this site are provided for informational and educational purposes only. Results are estimates based on the inputs you provide and mathematical formulas — they do not account for taxes, fees, inflation, risk, or other real-world factors that may affect financial outcomes. Past performance does not guarantee future results. Nothing on this site constitutes financial, investment, legal, or tax advice. Always consult a qualified professional before making financial decisions.
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