CARS, TRAVEL AND FUEL

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Fuel economy km/L ↔ L/100 km

Also converts US miles per gallon

Instant calculation

Calculate and convert fuel economy

Distance travelledTotal paid at the fuel station€Enter the fuel receipt total that relates to the distance travelled above.Unit price of fuel€/LEnter the price of one litre or one U.S. gallon shown on the same receipt.Unit used for the priceChoose litre or U.S. gallon to match the unit used by the entered price.

How the amount and unit price work together

Fuel purchased equals the total paid divided by the unit price. Consumption is then calculated by comparing that fuel volume with the distance travelled.

25 € ÷ 1.85 €/L = 13.51 L

13.51 Lestimated fuel used

This estimate assumes the amount spent matches the fuel used over this distance.

16.89 L/100 km5.92 km/L13.92 mpg USA16.72 mpg UK31.25 €/100 km0.31 €/km

For a reliable result use the full-to-full method: fill up, drive, then enter actual cost and price at the next fill-up.

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CALCUPOP · FUEL ECONOMY KM/L ↔ L/100 KM

Fuel economy km/L ↔ L/100 km

Completed summary using the values currently in the calculator

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01 · Calculation inputs

Complete the calculator or use the blank spaces below.

02 · Result and useful details

Result and useful details

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03 · Reminders, checks and notes

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DOES THE RESULT LOOK WRONG?

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HOW IT WORKS

A result to understand, not just read.

Translate fuel economy between kilometres per litre, litres per 100 kilometres and US miles per gallon. The tool also makes clear when a higher or lower number represents better efficiency.

FREQUENTLY ASKED QUESTIONS

How does fuel economy km/l ↔ l/100 km work?+

km/L and L/100 km are reciprocal measures, while US mpg also requires the mile and US-gallon conversion factors.

What should I check before relying on the result?+

Laboratory ratings can differ from real driving because of traffic, temperature, load, terrain and driving style.

RESULT GUIDE

How to use fuel economy km/l ↔ l/100 km

Translate fuel economy between kilometres per litre, litres per 100 kilometres and US miles per gallon. The tool also makes clear when a higher or lower number represents better efficiency.

01 · FORMULA

Calculation method

L/100 km = 100 ÷ (km/L)

km/L and L/100 km are reciprocal measures, while US mpg also requires the mile and US-gallon conversion factors.

02 · WORKED EXAMPLE

Practical example

Enter 16 km/L to see 6.25 L/100 km and the corresponding US mpg value.

All supported formats are shown from the same consumption level, making vehicle figures easier to compare.

Laboratory ratings can differ from real driving because of traffic, temperature, load, terrain and driving style.

03 · HOW TO READ IT

How to interpret the result

Check whether a published mpg figure uses US or imperial gallons; they are not interchangeable.
Change one input at a time to understand which assumption has the greatest effect on the result.

04 · LIMITS

What the estimate does not include

Laboratory ratings can differ from real driving because of traffic, temperature, load, terrain and driving style.
Use the result as a planning aid and confirm sensitive financial, health or animal-care decisions with the relevant document or qualified professional.