Enter your driving
Miles per year, your vehicle’s MPG, and the local gas price.
What does your car really cost at the pump? Monthly, annual, and 5-year fuel cost from your miles, MPG, and local gas price — plus a side-by-side comparison against a more efficient vehicle.
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Miles per year, your vehicle’s MPG, and the local gas price.
Monthly, annual, and 5-year fuel cost, plus cost per mile.
Add a second MPG to see exactly what a more efficient car saves you.
Divide the miles you drive per year by your vehicle’s MPG to get gallons burned, then multiply by the price per gallon. At 12,000 miles, 30 MPG, and $3.50 a gallon that’s 400 gallons — $1,400 a year, about $117 a month.
Add a second MPG in the comparison field to see it side by side. Going from 20 MPG to 40 MPG at 12,000 miles and $3.50 a gallon halves the fuel bill — about $1,050 saved per year, $5,250 over five years. The savings shrink as MPG climbs: 40 → 50 MPG saves far less than 20 → 30.
Combined MPG is the most realistic single number for mixed driving. If your commute is mostly stop-and-go, weight it toward the city figure. Decode your VIN free on VINDecoded to see the EPA city, highway, and combined ratings for your exact build.
Not directly — EVs measure efficiency in kWh per 100 miles or MPGe, and electricity is priced per kWh. The same idea applies (energy used × price), but this calculator models gasoline and diesel vehicles.
Decode the VIN free — EPA city, highway, and combined ratings for the exact build.
Estimates based on steady driving and a fixed gas price — real costs vary with traffic, season, and driving style.