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Fuel Cost Calculator

Calculate fuel costs for trips based on distance and consumption

Distance

Fuel Price

Currency Symbol

Consumption:

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Fuel Consumption (L/100km)

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Enter distance, consumption, and fuel price to see results

About Free Fuel Cost Calculator

Whether you are planning a weekend road trip, estimating your daily commute expense, or comparing vehicles before a purchase, our free fuel cost calculator gives you instant answers. Enter your trip distance, vehicle fuel consumption, and the current fuel price, and the tool calculates the total fuel needed, total cost, and cost per kilometer or mile.

The calculator supports both metric and imperial units, letting you work in kilometers or miles for distance, liters per 100 km or miles per gallon (MPG) for fuel consumption, and price per liter or per gallon for fuel cost. A built-in round-trip toggle doubles the distance automatically, saving you from manual multiplication.

Need to decide between two vehicles? Enable comparison mode to enter fuel consumption for two different cars and see a side-by-side breakdown of fuel needed, total cost, and the dollar savings of the more efficient option. All calculations happen instantly in your browser with full privacy and no registration required.

Key Features

Distance input in kilometers or miles with automatic unit conversion
Fuel consumption in L/100km or MPG to match your region's standard
Fuel price per liter or per gallon for worldwide compatibility
One-click round-trip toggle to double the distance automatically
Vehicle comparison mode with side-by-side cost and fuel breakdowns
Savings summary showing cost difference, fuel difference, and percentage savings
Cost per kilometer and cost per mile calculations for each vehicle
Customizable currency symbol supporting any world currency
Real-time results that update instantly as you change any input
Responsive design optimized for desktop, tablet, and mobile devices

How to Use the Fuel Cost Calculator

Enter the trip distance: Type the one-way distance and select kilometers or miles. Enable the round-trip toggle if you need the total for both directions.
Set the fuel price: Enter the current price at the pump and choose per liter or per gallon. Adjust the currency symbol if needed.
Enter fuel consumption: Input your vehicle's consumption rating in L/100km or MPG. This is usually found in the owner's manual or on a fuel economy sticker.
Review the results: The calculator displays fuel needed, total cost, cost per km/mile, and total distance in a clear card layout.
Compare vehicles (optional): Enable comparison mode, name both vehicles, and enter their consumption values to see which one saves you money.

Use Cases

Road trip budgeting: Calculate the fuel cost for long-distance drives before you hit the road so you can plan your travel budget accurately.
Daily commute analysis: Estimate your weekly and monthly fuel spending for the drive to and from work.
Vehicle purchase comparison: Compare the running cost of a fuel-efficient hybrid against a conventional vehicle over a typical trip distance.
Fleet cost management: Business owners and fleet managers can estimate fuel expenses for delivery routes and service calls.
Ride-sharing cost split: Calculate the total fuel cost for a shared trip and divide it fairly among passengers.
Moving and relocation: Estimate the fuel cost of driving a rental truck or personal vehicle to a new city.
Vacation planning: Factor fuel costs into your overall holiday budget for multi-stop driving itineraries.

Frequently Asked Questions

Is this tool free?

Yes, the fuel cost calculator is completely free with no registration, usage limits, or hidden fees.

Is my data secure?

All calculations are performed entirely in your browser. No trip distances, fuel prices, or vehicle information is stored or transmitted to any server.

How do I find my vehicle's fuel consumption?

Check your owner's manual, the window sticker from the dealer, or search for your vehicle model on a fuel economy website. You can also calculate it yourself by filling up the tank, driving a known distance, then dividing.

Can I switch between metric and imperial?

Yes. You can independently choose kilometers or miles for distance, L/100km or MPG for consumption, and per liter or per gallon for fuel price. The calculator handles all conversions internally.

Does the comparison mode account for different fuel types?

The comparison mode uses the same fuel price for both vehicles. If the two vehicles use different fuel types with different prices, you may want to run separate calculations for the most accurate comparison.

Tips & Best Practices

Use real-world consumption: Manufacturer ratings are often optimistic. Use your actual measured fuel consumption for more accurate cost estimates.
Factor in driving conditions: Highway driving is typically more fuel-efficient than city driving. Adjust consumption values accordingly for mixed routes.
Update fuel prices regularly: Gas prices fluctuate. Use the current pump price each time you calculate for the most accurate results.
Include the round trip: People often forget the return journey. Toggle the round-trip option to automatically double your distance.
Compare before buying: Use the vehicle comparison feature when shopping for a new car to see how much the fuel savings add up over typical driving distances.
Plan fuel stops: For long road trips, calculate the total fuel needed and plan refueling stops in areas with competitive prices.