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km/L to L/100km

Convert km/L to L/100km online, free and without signing up. Type a value and the result appears as you type, next to the value in every other fuel economy unit. For example, 10 km/L = 10 L/100km. Nothing is uploaded: the calculation runs in your browser.

How to convert km/L to L/100km

  1. 1Type your value in the “Value” field
  2. 2Check the units in “From” and “To”
  3. 3Read the result, or press “Swap”
  4. The result, and the value in every unit.

What happens to your numbers

  • Nothing is uploaded.The calculation runs in your browser, on your own device.
  • Every unit at once.A table shows your value in all the other fuel economy units.
  • Works offline.Once the tool has been opened, it needs no connection.

What you can do

  • Type any value, including decimals and negative numbers, and see the result as you type.
  • See your value in every fuel economy unit in the table below the result.
  • Press “Swap” to turn the conversion around, or pick other units in “From” and “To”.

Good to know

  • km/L is kilometres driven on one litre. Higher is better. It is common in Japan, India and Brazil, and it is the inverse of L/100km times 100.
  • L/100km is litres needed for 100 kilometres. Lower is better. It is the usual figure in Europe, and 8 L/100km is a typical car.
  • L/100km runs the other way from km/L and mpg: a lower number is better. A value of 0 cannot be converted into those two and shows a dash.
  • mpg means US miles per gallon. A UK (imperial) gallon is bigger, so the same car shows about 20% more mpg in UK figures.
  • Results are shown with up to 10 significant digits. Very large or very small numbers appear in exponent form, for example 1.5e+16.

Questions

Are my values sent to a server?

No. The calculation runs in your browser, on your own device. Nothing you type is sent to us or anyone else.

How do I convert km/L to L/100km?

Type your value in the “Value” field. The result appears at once, for example 10 km/L = 10 L/100km. “Swap” turns the conversion around.

Is this US or UK mpg?

US mpg, with a gallon of 3.785 litres. 10 L/100km is 23.52 US mpg. UK mpg figures for the same car are about 20% higher.

Related tools

How it works

Small tools that run in your browser.

Four steps

  1. Start with a file or a task

    Drop a file, search, or pick a task.

  2. The tool opens in a window

    Open as many as you like, side by side as tabs.

  3. Results collect on the right

    Drag a result into the next tool.

  4. Save when you're done

    Saved files go to your downloads.

Who uses what

Tool sets for common jobs.

Put a tool on your home screen

The icon opens that tool, like an app.

iPhone and iPad

  1. Open the tool in Safari.
  2. Tap Share (the square with the arrow).
  3. Choose “Add to Home Screen”, then Add.

Android

  1. Open the tool in Chrome.
  2. Tap the menu (⋮) at the top right.
  3. Choose “Add to Home screen” or “Install app”.

Computer

  1. Open the tool in Chrome or Edge.
  2. Click the install icon in the address bar.
  3. Choose Install.

Skills

Claude skills we use ourselves, one job each.