← All text tools

Fuel economy converter

Convert L/100 km, km/L and miles per gallon (US and UK).

  • Free
  • No sign-up
  • Works on any device

About Fuel economy converter

Fuel economy is written three ways: litres per 100 km, km per litre and miles per gallon. The first goes down as efficiency improves, the others go up. US and UK gallons differ, so 30 US mpg is about 36 UK mpg and 7.8 L/100 km.

How to use Fuel economy converter

  1. Type the value you want to convert.
  2. Choose the units to convert from and to.
  3. See the answer instantly, with a table of every unit and the formula.

Why use this tool?

Also known as

Frequently asked questions

Why is UK mpg higher than US mpg?

The imperial gallon is about 4.546 litres and the US gallon is 3.785 litres, so the same car shows roughly 20 percent more mpg in UK terms.

Is Fuel economy converter free?

Yes. Fuel economy converter on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

Related tools