Fuel Economy Converter
Convert fuel economy between MPG, km/L and L/100 km.
Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.
About this Fuel Economy Converter
The Fuel Economy Converter translates between common distance-per-fuel and fuel-per-distance formats. Because L/100 km is an inverse measure, it requires a reciprocal conversion rather than a simple multiplication factor.
For related tasks, try Speed Converter, Pace Converter or Volume Converter.
How the calculation works
The tool converts each input through liters per 100 kilometers. US and imperial gallons use different volumes, so their MPG values are not interchangeable.
How to use it
- Enter a fuel-economy value.
- Choose the source and target units.
- Convert to compare the equivalent efficiency.
Practical example
About 30 US MPG is approximately 7.84 L/100 km.
Frequently asked questions
Is US MPG the same as imperial MPG?
No. An imperial gallon is larger, so the numeric MPG value differs.
Is lower L/100 km better?
Yes. Lower fuel used per 100 km indicates better efficiency.
Can zero be converted?
No. Reciprocal fuel-economy conversions require a positive value.
Keep exploring
View category →More Converters
Speed ConverterConvert m/s, km/h, mph and knots.Pace ConverterConvert running pace between min/km, min/mile, km/h and mph.Volume ConverterConvert liters, milliliters, cubic meters and common US volume units.Length ConverterConvert between metric and imperial length units.Weight ConverterConvert mass between metric and imperial units.Temperature ConverterConvert Celsius, Fahrenheit and Kelvin temperatures.