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Fuel Economy Converter

Convert fuel-economy units instantly and locally.

Converted result235.214583 L/100 km

1 mpg US equals 235.214583 L/100 km

Common conversions

Fuel economy conversions are reciprocal: zero is undefined and rejected.

Miles per US gallon: Symbol mpg US; converted through Litres per 100 kilometres.

Litres per 100 kilometres: Symbol L/100 km; formatting is applied only after calculation.

Conversion runs locally in your browser.

Popular fuel economy converter pages

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Common conversion table

Miles per US gallon (mpg US)Litres per 100 kilometres (L/100 km)
1 mpg US235.214583 L/100 km
2 mpg US117.6072915 L/100 km
5 mpg US47.0429166 L/100 km
10 mpg US23.5214583 L/100 km
20 mpg US11.76072915 L/100 km
25 mpg US9.40858332 L/100 km
50 mpg US4.70429166 L/100 km
100 mpg US2.35214583 L/100 km

Available units

  • Litres per 100 kilometres (L/100 km)
  • Kilometres per litre (km/L)
  • Miles per US gallon (mpg US)
  • Miles per Imperial gallon (mpg Imperial)

How to use this converter

  1. Choose consumption or efficiency units and enter a non-zero value.
  2. Review the live result and use Copy result when you need to share it.

How the conversion works

Reciprocal formulas convert between L/100 km, km/L and gallon-based mileage.

Formula

Reciprocal formulas convert between L/100 km, km/L and gallon-based mileage.

Step-by-step calculation

  1. Choose consumption or efficiency units and enter a non-zero value.
  2. Reciprocal formulas convert between L/100 km, km/L and gallon-based mileage.
  3. Check the displayed result, then copy it if needed.

Worked example

30 mpg US is approximately 7.8404861 L/100 km.

Risk guidance

Frequently asked questions

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Check that the entered units and values match your situation, especially around dates, breaks, and rounding.

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