Price a trip in litres or gallons by L/100 km, km/L or US MPG: total cost, fuel needed, cost per kilometre or mile, per-person split and car comparison.
All calculations happen locally in your browser. Your distances and fuel prices never leave your device.
The price label follows the economy unit: MPG implies price per US gallon (3.785 L), the other modes imply price per litre.
The currency selector only changes the display symbol — no exchange-rate conversion is applied. To convert an amount, use the currency converter..
Estimates only — real fuel consumption varies with driving style, load and conditions.
Fuel cost is one product: distance × consumption × price. The only complication is that the world measures consumption three different ways, so the tool converts everything internally to litres per 100 km before multiplying.
Yes, and not marginally: aggressive acceleration, sustained high speed, heavy loads, cold weather and heavy A/C use can plausibly shift real consumption by 15% or more in either direction, and city stop-and-go driving differs from highway cruising. The figure this tool gives you is a driving-style-independent arithmetic result for the economy number you enter — treat it as a midpoint, not a quote.
Not properly — an EV is metered in kWh per 100 km and priced per kWh, with charging curves and regenerative braking that no fuel-conversion factor captures. This tool is for liquid fuels only; there is a separate electricity calculator for kWh-based costs, but it estimates appliances, not drivetrains.
Because a US gallon is 3.785 litres and an imperial gallon is 4.546 litres, so the same car reads about 20% higher on UK mpg than on US mpg. This calculator uses US gallons only, and says so on the label — mixing the two is one of the most common fuel-math errors.
No — this is fuel cost only. Tolls, parking, tyre wear and servicing can meaningfully change the real cost of a trip, so add them separately if you are comparing routes or car ownership.
No. The conversions between L/100 km, km/L and MPG and all cost math run locally in your browser with plain JavaScript. Your distances and prices never leave your device, and there is no account and no network request attached to a calculation.
If you just finished with Fuel Cost, the natural next steps are Electricity Cost, Inflation Calculator, ROI Calculator, or browse every tool in Cross-border Finance.