How to use it
A useful answer in three steps.
- 01
Enter the full driving distance, including the return journey if needed.
- 02
Use real-world fuel economy rather than the best advertised figure.
- 03
Add tolls and parking to see the actual trip budget.
Everyday · Travel
Fuel Cost Calculator
Plan trip fuel, total driving cost, cost per passenger, and the effect of fuel economy in metric or US units.
01
Enter your details
Results update instantly as you type.
Core formula
The math behind the result.
Fuel cost = trip distance ÷ fuel economy × fuel priceQuestions
Useful before you decide.
Should I use highway or combined fuel economy?
Use the figure closest to your route. Stop-and-go driving usually consumes more fuel than steady highway travel.
How do I include a round trip?
Enter the total round-trip distance, or double the one-way distance before calculating.
Does passenger count change fuel use?
The calculator uses passenger count only to split the cost. Heavy loads can slightly reduce real fuel economy.