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Fuel Efficiency Converter

Convert between MPG (miles per gallon) and L/100km (liters per 100 km) with the Fuel Efficiency Converter. Essential for comparing US, UK and EU vehicle specs.

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Maintained by T1000 Tools · Site content last updated July 13, 2025

What is Fuel Efficiency Converter?

Fuel Efficiency Converter is a free online unit conversion tool. Convert between MPG (miles per gallon) and L/100km (liters per 100 km) with the Fuel Efficiency Converter. Essential for comparing US, UK and EU vehicle specs. Conversions use internationally recognised factors for precise, reliable results.

How to use Fuel Efficiency Converter

Converting values is simple:

  • ✓Enter the value you want to convert.
  • ✓Select the source unit from the dropdown.
  • ✓Select the target unit.
  • ✓The converted value appears instantly.

Why use Fuel Efficiency Converter?

Fuel Efficiency Converter removes the need to memorise conversion factors or reach for a reference book. It is accurate, fast, and completely free — ideal for students, engineers, and travellers.

Frequently Asked Questions

How does Fuel Efficiency Converter work?
Convert between MPG (miles per gallon) and L/100km (liters per 100 km) with the Fuel Efficiency Converter. Essential for comparing US, UK and EU vehicle specs. Enter a value and select units — conversion happens instantly.
Is Fuel Efficiency Converter accurate?
Fuel Efficiency Converter uses internationally recognised conversion factors for accurate results.
Is Fuel Efficiency Converter free?
Yes, completely free with no limits.
Does Fuel Efficiency Converter support all units?
Fuel Efficiency Converter covers the most common units. Check the dropdowns for the full list.
Do I need an account?
No account or sign-up is required.

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