MPG to L/100 km converter

How to convert miles per gallon (US) to liters per 100 km

To convert miles per gallon (US) to liters per 100 km, use L/100 km = 235.215 ÷ mpg. For example, 40 mpg is 5.88036 L/100 km. Type any value in the converter above and the result updates instantly.

The MPG to L/100 km formula

The conversion is L/100 km = 235.215 ÷ mpg. One mile per gallon (US) equals 235.215 L/100 km. The factor is rounded to the digits shown; the converter above uses full precision.

MPG to L/100 km conversion table

Where miles per gallon (US) and liters per 100 km are used

Miles per gallon measures fuel economy in the United States (and in the UK with a larger gallon).

Liters per 100 kilometers measures fuel consumption in most of the world: lower is better.

Worked examples

These examples use the formula above, so you can check the converter or do the same by hand:

• 15 mpg = 15.681 L/100 km
• 25 mpg = 9.40858 L/100 km
• 35 mpg = 6.72042 L/100 km

Converting miles per gallon (US) to liters per 100 km in your head

As a quick estimate, multiply by 235 (rounded).

L/100 km to MPG reference table

For the opposite direction, these values are handy to have at hand:

Common mistakes to avoid

• Fuel economy is inverted between systems: more miles per gallon is better, but fewer liters per 100 km is better.
• US and UK miles per gallon differ because the gallons differ; this page uses US gallons.

About this converter

The converter accepts whole numbers, decimals and negative values, gives the result as you type, and uses full precision internally, so what you copy is as accurate as it can be. It runs in your browser: nothing you type is sent to a server, it keeps working offline once the page has loaded, and there is nothing to install.

Need the opposite direction? Use the L/100 km to MPG converter.