Check tyre pressure
Under-inflated tyres increase fuel use.
Fuel Cost Calculator
Find out how much a road trip, daily commute or delivery run will cost in fuel. Enter the distance, your car's fuel average and the current price, and split the total between passengers.
- 100% free
- No sign-up
- Runs in your browser
Total trip cost
Fuel needed
Cost per km
Cost per person
How to use
How to use the Fuel Cost Calculator
- Enter the distance and tick Return trip if you are coming back.
- Enter your fuel efficiency in km per litre, L/100 km or mpg.
- Enter the current fuel price.
- Add tolls and the number of people sharing.
Private by design. Calculations happen in your browser. Nothing you enter is uploaded or stored.
About this tool
How fuel cost is calculated
Fuel needed is the distance divided by how far your vehicle travels on one litre, or the distance times litres per 100 km divided by 100. Multiply the litres by the price per litre and you have the fuel cost. The calculator converts miles, US gallons and UK gallons automatically, so you can mix units freely.
Real-world consumption varies with traffic, speed, air conditioning, load and tyre pressure. City driving in heavy traffic can use noticeably more fuel than highway driving, so it is wise to add a margin for long trips.
Good to know
Saving fuel
Drive smoothly
Gentle acceleration and steady speeds save fuel.
Reduce weight
Remove heavy items you do not need from the boot.
Use your real average
Measure litres per fill-up to know your true km per litre.
FAQ
Fuel Cost Calculator FAQs
How do I find my car's km per litre?
Fill the tank, reset the trip meter, drive, then divide the kilometres driven by the litres needed to refill.
Can I use miles per gallon?
Yes. Choose miles per US or UK gallon as the efficiency unit.
Does it work for any currency?
Yes. Enter the price in your own currency.
Why is my real cost higher?
Traffic, idling, air conditioning and speed all raise consumption above the rated figure.
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