Free Fuel Cost Calculator
Work out how much fuel a trip will cost from distance and mileage — no signup, nothing sent to a server.
Fuel needed
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Total cost
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Cost per km: —
How to use the fuel cost calculator
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1
Enter the trip distance
Type the distance to be traveled, in kilometers.
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2
Enter fuel efficiency
Type your vehicle's mileage in kilometers per litre.
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3
Enter the fuel price
Type the current price per litre of fuel.
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4
Read the result
Fuel needed and total cost update instantly as you type.
Example use cases
Road trip planning
Budget for fuel before a long drive.
Commute cost comparison
Compare fuel costs of different routes or vehicles for a daily commute.
Delivery & logistics
Estimate fuel expenses for delivery runs or fleet trips.
Frequently asked questions
How is fuel cost calculated?
Fuel needed = distance ÷ fuel efficiency (km per litre). Total cost = fuel needed × fuel price per litre.
What if my mileage is in km per litre but distance is in miles?
Convert your distance to kilometers first using the KM to Miles converter, so the units match before calculating.
What does "number of trips" do?
It multiplies the total cost by however many times you'll make the trip — useful for round trips or repeated commutes.
Is anything I type sent to a server?
No. Every calculation runs entirely in your browser — nothing is transmitted or logged.