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Kilometer per Liter Converters

Convert between km/L, L/100km, MPG (US), and MPG (UK) fuel efficiency units.

What this tool does

Convert between km/L, L/100km, MPG (US), and MPG (UK) fuel efficiency units. Type an amount in kilometers per liter, choose the units, and the tool converts it to liters per 100 kilometers. It offers 4 fuel economy units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one: Mile per US gallon (mpg US), Mile per imperial gallon (mpg UK), Liter per 100 kilometers, Kilometer per liter. Starts as Kilometer per liter.
  • To: Choose one of the same 4 units as "From". Starts as Liter per 100 kilometers.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from kilometers per liter to liters per 100 kilometers:

  • 1 km/L = 100 L/100 km
  • 5 km/L = 20 L/100 km
  • 10 km/L = 10 L/100 km
  • 50 km/L = 2 L/100 km
  • 100 km/L = 1 L/100 km

Divide 100 by the number of kilometers per liter to get liters per 100 kilometers. Both units are exact definitions, so 100 is the exact factor: 1 km/L = 100 L/100 km.

Sources: Kilometer per liter: exact by definition. Liter per 100 kilometers: exact by definition.

Limitations

  • Converts the unit of a fuel economy figure only. It does not work out fuel cost, trip fuel or a car's real-world economy.
  • A US gallon and an imperial gallon are different volumes, so mpg (US) and mpg (UK) are shown as separate units.

FAQs

Q: How do I convert km/L to L/100 km?
A: Divide 100 by the km/L figure. 10 km/L is 10 L/100 km, and 20 km/L is 5 L/100 km.
Q: What is 10 km/L in miles per gallon?
A: About 23.5 mpg (US) or 28.2 mpg (UK).
Q: Which is better, a higher or lower number?
A: Miles per gallon and kilometers per liter measure distance per fuel, so a higher number is better. Liters per 100 km measures fuel per distance, so a lower number is better.

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