Converters
Fuel Economy Converter
Convert US MPG, Imperial MPG, km/L, and L/100 km.
Your inputs
Adjust the values
MPG and L/100 km are reciprocal measures: higher MPG is better, while lower L/100 km is better.
US fuel economy
30 MPG
About this tool
A straightforward fuel economy converter
Convert US MPG, Imperial MPG, km/L, and L/100 km. All values convert through liters per 100 kilometers using accepted US and Imperial gallon constants.
The formulas distinguish US and Imperial gallons and preserve precision until display. Inputs are processed in your browser, and changing a value updates the result immediately.
How it works
Use the Fuel Economy Converter in three steps
- 1Enter your values
Enter a fuel-economy value and identify its source unit.
- 2Check the setup
Choose the units or calculation mode that matches your situation.
- 3Use the result
See equivalent US MPG, Imperial MPG, kilometers per liter, and liters per 100 km.
Common questions
Fuel Economy Converter FAQ
How does the Fuel Economy Converter work?
All values convert through liters per 100 kilometers using accepted US and Imperial gallon constants.
What information do I need?
Enter a fuel-economy value and identify its source unit.
How accurate is the result?
The formulas distinguish US and Imperial gallons and preserve precision until display.