Road Trip Fuel Cost Calculator

Estimate gasoline or diesel expenses, fuel tank usage, refueling stops, and total road trip costs without outside data feeds.

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Your Road Trip

Enter the one-way driving distance for your trip. You can find the mileage using your preferred navigation app or map. Use the actual driving distance rather than the straight-line distance.

One-Way Driving Distance (Miles)Calculate Round Trip

Vehicle and Fuel

Fuel TypeVehicle Fuel Efficiency (MPG)Fuel Tank Capacity (Gallons)Gasoline Price Per Gallon ($)

Additional Trip Expenses

Number of TravelersTotal Tolls ($)Total Parking Costs ($)

Your Estimated Trip Costs

Total Distance: 600 miles

Fuel Required: 24 gallons

Fuel Cost: $84.00

Equivalent Full Tanks Used: 1.6

Range Per Full Tank: 375 miles

Estimated Refueling Stops: 1

Fuel Cost Per Mile: $0.14

Total Trip Cost: $84.00

Cost Per Traveler: $42.00

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How to Use This Road Trip Calculator

Enter the driving mileage between your locations, your vehicle's average miles per gallon, fuel tank capacity, and the price of gasoline or diesel. Select round trip if you will be returning.

Fuel cost equals total miles divided by MPG, multiplied by the fuel price per gallon. Tank estimates assume you start with a full tank and use its entire capacity. Actual refueling stops may differ depending on remaining fuel, traffic, weather, terrain, and driving habits.

Tolls and parking are added to your estimated fuel expenses. Traveler costs assume everyone shares the total equally. Enter round-trip totals for tolls and parking when applicable.

This calculator works entirely in your browser. No mapping services, fuel-price feeds, or external calculation APIs are required.