Fuel Cost Calculator
Estimate fuel use and trip cost from distance, efficiency, and fuel price.
Enter values
Result
Keep distance, efficiency, and price in one unit system
For km/L, a 300 km trip at 15 km/L uses about 20 litres. The tool multiplies that fuel amount by the price per litre. L/100 km uses the same kilometre-and-litre system.
Selecting US MPG changes the inputs to miles and price per US gallon. It does not mix miles with Imperial gallons or convert currencies.
About this tool
km/L and L/100 km use kilometres, a price per litre, and litres. US MPG uses miles, a price per US gallon, and US gallons, so the unit systems are not mixed.
Real fuel use changes with traffic, load, weather, and driving style. The result is an estimate based only on the values you enter.
Frequently asked questions
Does it fetch current fuel prices?
No. It uses only the price you enter and makes no external request.
Which MPG does it use?
The MPG option uses US gallons, not Imperial gallons.
Can I enter distance in miles?
Yes. Select US MPG to enter distance in miles and fuel price per US gallon.
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