Use the Fuel Cost Calculator in three steps
Choose the unit system
Use kilometers and liters or miles and US gallons.
Enter trip and vehicle data
Add distance, fuel efficiency, and the price per fuel unit.
Review the estimate
See required fuel, total cost, and cost per kilometer or mile.
Use a realistic efficiency figure
Official ratings are useful for comparison, but recent real-world efficiency from your vehicle gives a better trip estimate.
Allow for driving conditions
Traffic, speed, hills, weather, tire pressure, load, and idling can all change fuel use. Treat the result as a planning estimate.
Fuel Cost Calculator FAQ
What does km/L mean?＋
It is the number of kilometers the vehicle travels using one liter of fuel.
Which gallon does MPG use?＋
The US mode uses US liquid gallons, not imperial gallons.
Can I calculate a round trip?＋
Yes. Enter the complete outbound and return distance.
Does the result include tolls or parking?＋
No. It estimates fuel only.
Why might my actual fuel cost differ?＋
Fuel price and real driving efficiency can vary during the journey.
How is fuel needed calculated?＋
Distance is divided by the entered efficiency, then fuel quantity is multiplied by price.