Fuel Consumption Calculator
Type in the kilometres and litres from your last full tank-up, and the calculator will work out consumption per one hundred kilometres.
How do I use this page?
- Fill in the fields in the form above — the result recomputes at once, with no page reload.
- Under the result you will find the interpretation scale, if the calculator has one: it says which range your value fell into.
- The formula we use is shown lower on this page — you can check the arithmetic yourself.
- To compute the same for another game or variant, change it in the select field — prices and pools update automatically.
Further reading
Theory — how is fuel consumption calculated?
Fuel consumption measures how much fuel a car uses per one hundred kilometres driven. The calculator divides the litres filled up by the distance travelled and multiplies by one hundred — for 34.5 litres over 540 kilometres that works out to 6.39 litres per hundred kilometres. At a price of 6.29 PLN per litre, this translates into a concrete cost for every hundred kilometres of the trip. The method relies solely on filling the tank to full and does not account for driving style or road conditions.
Frequently asked questions
How much fuel does a car use if it consumed 34.5 litres over 540 km?
6.39 litres per 100 km. At a price of 6.29 zl per litre, that's 40.19 zl for every hundred kilometres.
Why does the onboard computer show less than my calculation?
Onboard computers usually understate consumption by 5–10 percent. The result from receipts and the trip counter is more accurate, because it accounts for the litres actually filled.
How many measurements do you need for a reliable result?
At least three consecutive full tank-ups. A single measurement depends on whether you drove in the city or on the motorway — the difference can reach two litres per hundred.
Does air conditioning raise fuel consumption much?
In the city, by as much as 0.5–1 litre per 100 km. On the motorway the difference is smaller, because the compressor runs more efficiently at higher engine speeds.