📌 Overview

Convert fuel economy between MPG (US & UK), km/L and L/100km — useful when comparing cars across regions.

⛽ Fuel Economy Converter

Convert fuel economy between MPG (US & UK), km/L and L/100km — useful when comparing cars across regions.

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📖 Deep Dive: Fuel Economy Converter

Two ways of thinking

MPG (miles per gallon) is volume to distance, where a larger number means better economy; L/100km is distance to volume, where a smaller number means better economy. The two are reciprocal.

Conversion factors

  • 1 km/L = 2.352 MPG(US) = 2.825 MPG(UK)
  • 1 L/100km = 100 / (km/L)
  • 1 MPG(US) is about 0.425 km/L

    • US vs imperial gallon

    The US gallon is 3.785 L, the imperial gallon is 4.546 L, so imperial MPG shows a larger number.

    Notes

  • Real fuel use varies a lot with driving habits, road conditions, and air conditioning.
  • Results are for reference only.