How does the Fuel Cost Calculator work?
Litres = distance ÷ 100 × consumption. Cost = litres × price per litre.
Background & details
How to read the result
The calculator gives you two numbers: the litres used and the total cost. The litres depend only on distance and consumption – the price is applied last. That is handy, because you can update the price per litre to today's rate without re-entering everything else. The cost covers fuel alone; tolls, parking and wear are not included.
What consumption figures are typical?
- Small cars: 4–6 l/100 km
- Compact and mid-size: 6–8 l/100 km
- SUVs and vans: 8–12 l/100 km
- Electric car: 15–20 kWh/100 km (enter kWh instead of litres in the "consumption" field)
The most accurate way to find your car's real consumption is to fill the tank, note the odometer, and at the next full fill-up divide the litres added by the kilometres driven (×100).
Common mistakes
The biggest mistake is using the optimistic manufacturer figure (WLTP). In daily driving the real consumption is often 1–2 litres higher, especially in city traffic, cold weather or with a roof box. Second mistake: entering only the outbound leg. For a round trip you have to double the distance. And remember that air conditioning, a trailer and speeds above 130 km/h push consumption up noticeably.
Practical tips
Use the calculator to compare: enter your city consumption once and your motorway consumption once to see the range for a route. To split a carpool, simply divide the total cost by the number of passengers. And before long trips it pays to check fuel-price apps – a 10-cent difference per litre already adds up to €5 over 50 litres.
Where the calculator stops
For rough budgeting it is ideal. If you want the true cost per kilometre, you also have to add insurance, tax, servicing and depreciation – which often dwarf the fuel alone. But for the pure fuel share of one specific trip, this calculator is exactly the right tool.