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Fuel Consumption Conversion Calculator

Fuel Consumption Conversion Calculator

This calculator converts between various measures of fuel consumption:

  • Litres per 100km - the European standard.
  • Miles per Imperial Gallon - the UK standard.
  • Miles per US Gallon - the standard in the USA.

Choose the measure that you are converting from:


There are 1.200949857 US gallons to 1 Imperial (UK) gallon (US gallons are smaller). Therefore 20 miles per US gallon (less fuel) is more economical than 20 miles per imperial (UK) gallon (more fuel).