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Fuel Consumption Calculator

Enter the distance driven and the amount of fuel filled up, and the calculator will give you average fuel usage.

Best taken from the trip counter reset at the previous full tank-up.

Amount of fuel added to fill the tank, from the receipt. Use a comma or a dot for the decimal part.

Optional — with a price the calculator gives the cost of 1 km, 100 km, the whole trip and 500 km.

Average consumption: — l/100 km

Fill in the fields above — the result is computed on this page.

Cost of 1 km
— PLN
Cost of 100 km
— PLN
Cost of the distance driven
— PLN
Cost of 500 km
— PLN
How to use this page
  1. Fill in the fields in the form above — the result recomputes at once, with no page reload.
  2. Under the result you will find the interpretation scale, if the calculator has one: it says which range your value fell into.
  3. The formula we use is shown lower on this page — you can check the arithmetic yourself.
  4. To compute the same for another game or variant, change it in the select field — prices and pools update automatically.

What this page does not do: It does not point to numbers to play and does not predict a draw — every draw is independent of the previous ones.

Further reading

The calculation is straightforward: litres divided by kilometres, multiplied by 100. If you filled up 34.5 litres over 540 kilometres, consumption comes out to 6.39 litres per hundred kilometres. At a price of 6.29 zl per litre, a hundred kilometres costs 40.19 zl, and the whole trip 216.71 zl. The fuel prices given here are only an example — check the current price at your station.

For the measurement to make sense, you need to fill up to full. Fill up to full, reset the trip counter and drive as usual. At the next fill-up, again to full, you read off the distance and litres from the receipt. A single measurement can be misleading — the difference between city driving and motorway driving can reach two litres per hundred. Average out three or four fill-ups.

The onboard computer almost always understates the result. Understating by 5–10% happens on many models. Working it out from the receipt is simply more accurate, because it's based on the litres you actually paid for. Fuel consumption is affected by tyre pressure, roof boxes, air conditioning and driving style. Too-low tyre pressure alone can add half a litre per hundred kilometres.

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.

See also

← All calculators

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