Fuel Cost Per Mile for an SUV at 18 MPG

An SUV averaging 18 MPG with gas at $3.80 per gallon pays about $0.211 per mile just in fuel costs.

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How to use this tool

Enter the current price of fuel per gallon.
Enter your vehicle's fuel economy in MPG.
The calculator returns cost per mile and cost per 100 miles.

Large SUVs with low fuel economy can cost over $0.20 per mile in gas alone — find out exactly how much your vehicle costs per mile.

Frequently asked questions

How do I calculate fuel cost per mile?: Divide the price per gallon by your MPG. For example, $3.50/gal ÷ 28 MPG = $0.125 per mile ($12.50 per 100 miles).
What is the IRS mileage rate?: The IRS standard mileage rate covers fuel, maintenance, and depreciation. For 2025 it is 70 cents per mile for business use. Fuel cost alone is typically 10–20 cents per mile.