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Fuel Consumption Conversion Calculator to Convert MPG and Liters per 100KM

Calculator Preferences
Fuel Consumption Conversion Calculator

This calculator will convert between miles per gallon (US or Imperial) and liters (or litres) per 100 kilometers. The calculator not only shows its work, but also includes an option for creating a custom fuel conversion chart that you can print out and take with you when shopping for a car. The Learn tab includes:

  • Most popular fuel conversion formulas.
  • Step-by-step examples showing how to make the conversions manually.
Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None

Conversion type:

Select the desired conversion option. The calculator will then rename the fields according to your selection. Note that MPG stands for Miles Per Gallon, and KM stands for Kilometers.


Fuel units to convert from:

Enter the fuel consumption units to convert from the type listed on in this line.

Round:Round to:Round to:Round to:

Round conversion units:

Select the number of places you would like the "to" units rounded to (affects chart rounding as well). If "None" is selected, no rounding will be performed and raw values will be displayed both in the result field and in the chart. Note that you can alter the rounding of the result before or after the conversion.

Liters/100 KMLiters per 100 KMLiters per 100 KilometersLiters per 100 Kilometers:equiv:equivalent:equivalent:

Fuel consumption conversion result:

This is the fuel consumption units converted into the type listed on this line. Note that you can alter the rounding of the result before or after the conversion.

If you would like to save the current entries to the secure database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

Create Conversion Chart

Fuel consumption conversion chart:

To create a custom fuel consumption conversion chart that you can print out, enter the starting and ending units based on the first type listed in the selected conversion type. Then click the Create Conversion Chart button. This will open a printer friendly window containing your custom fuel consumption conversion table.

StartStartStartingStarting MPG (US)MPG (US)Miles per gallon (US)Miles per gallon (US):

Starting units:

Enter the units you want the chart to start at.

EndEndEndingEnding MPG (US)MPG (US)Miles per gallon (US)Miles per gallon (US):

Ending units:

Enter the units you want the chart to stop at.

Increment:Increment by:Increment by:Increment by:

Increment from units by:

Select the value you want the from units incremented by in the conversion chart.

Feedback AppreciatedFeedback Greatly AppreciatedYour Feedback Would Be Greatly AppreciatedYour Feedback Is Greatly Appreciated


Help and Tools

Help and Tools:

This section, which you can Unstick or Hide in the Calculator Preferences (just above the top of the calculator), contains the following tabs (content too long to fit within bordered frame can be scrolled up and down):

About: Click this tab for an introduction to the calculator.

Instructions: Click this tab for step-by-step instructions for using the calculator.

Terms: Click this tab for a list of the descriptions that are located within each popup help button (info icons).

PCalc: Click this tab for a handy "pocket" calculator you can use when you need to calculate an entry needed for the calculator.

Data: Click this tab to save a set of entries or a note in between visits. Entries and notes will be stored to your web browser's local storage (if supported by your browser of choice), meaning they can only be recalled with the same device and web browser you were using when you saved them. If you'd like to save entries and notes between devices you can do so by subscribing to the Ad-Free Member Version.



Add or remove this page to/from my favorites.

Adjust Calculator Width:

Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.