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Kilometers per Liter to Miles per Gallon (UK) Converter

Convert fuel efficiency from km/L to MPG UK with this free calculator.

What this tool does

Convert fuel efficiency from km/L to MPG UK with this free calculator. Type an amount in kilometers per liter, choose the units, and the tool converts it to miles per imperial gallon (mpg UK). It converts between these two fuel economy units, in either direction.

Inputs

  • Value: A number.
  • From: Choose one: Kilometer per liter, Mile per imperial gallon (mpg UK). Starts as Kilometer per liter.
  • To: Choose one of the same 2 units as "From". Starts as Mile per imperial gallon (mpg UK).

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. It appears once every required field has a valid value.

Worked examples

Conversions from kilometers per liter to miles per imperial gallon (mpg UK):

  • 1 km/L ≈ 2.824809 mpg (imp)
  • 5 km/L ≈ 14.124047 mpg (imp)
  • 10 km/L ≈ 28.248094 mpg (imp)
  • 50 km/L ≈ 141.240468 mpg (imp)
  • 100 km/L ≈ 282.480936 mpg (imp)

Multiply the number of kilometers per liter by about 2.824809 to get miles per imperial gallon (mpg UK). The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Kilometer per liter: exact by definition. Mile per imperial gallon (mpg UK): 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.
  • Miles per gallon here means the imperial (UK) gallon of 4.54609 liters. Miles per US gallon is not on this page.

FAQs

Q: What is 10 km/L in UK miles per gallon?
A: About 28.2 mpg (UK). Multiply km/L by about 2.825.
Q: Why is the UK figure different from the US figure?
A: The imperial gallon is about 4.546 liters and the US gallon about 3.785 liters. This page uses the imperial gallon. 10 km/L is about 23.5 mpg (US) but 28.2 mpg (UK).

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