Converters Calculator
Fuel Economy Converter
Convert fuel economy between miles per gallon, kilometers per liter, and liters per 100 km.
⚠️ Please enter a valid positive number.
Converted Fuel Economy
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Calculator guide
How this calculator works
How to use this calculator
Enter a fuel economy value, choose the current unit, choose the target unit, then click Convert.
Formula used
The calculator converts the input into kilometers per liter, then converts it into the selected output unit. For L/100 km, the relationship is L/100 km = 100 ÷ km/L.
Example calculation
30 mpg US is about 7.8404 L/100 km.
What the result means
The result shows the same fuel economy expressed in another common format.
Frequently asked questions
Is lower L/100 km better?
Yes. For L/100 km, a lower number means less fuel used per 100 kilometers.
Is higher mpg better?
Yes. For mpg, a higher number means more distance per gallon.
Are US and Imperial gallons different?
Yes. That is why mpg US and mpg Imperial are listed separately.