MPG Converter

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Fuel economy in US miles per gallon (1 US gallon = 3.785 L).
mpg
Optional: enter a fuel price to see running-cost estimates.
Price per gallon or litre in your chosen currency. Leave at zero or set price unit to "No fuel price" to skip cost outputs.
US miles per gallonGood economy
30mpg

Miles per US gallon (standard US/Canada measure)

UK miles per gallon36.03mpg
Litres per 100 km7.84L/100 km
Kilometres per litre12.75km/L
Miles per litre7.93mi/L
30 US mpg
Very poor<10Below avg10-18Average18-28Excellent28-40Exceptional40+

30.0 US mpg - good fuel economy.

  • This is good fuel economy. The US average for new cars is roughly 28 mpg, and highly efficient vehicles exceed 50 mpg.
  • At 7.84 L/100 km, this is good by European standards (6-8 L/100 km).
  • In km/L (used in Japan, India, and Southeast Asia), this equals 12.75 km/L. India's fuel efficiency standard requires 17-23 km/L for most new passenger cars.
  • UK mpg is always higher than US mpg for the same vehicle because a UK gallon (4.546 L) is 20% larger than a US gallon (3.785 L). This vehicle shows 30.0 US mpg vs 36.0 UK mpg.

Next stepTo calculate the total fuel cost for a road trip, multiply your L/100 km figure by the trip distance in km, divide by 100, then multiply by the price per litre.

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