Fuel Economy Converter
Convert between all major fuel economy units: miles per gallon (US and imperial), liters per 100 kilometers, and kilometers per liter. Uses exact gallon and mile definitions.
Fuel economy is expressed differently around the world. The US uses miles per gallon (MPG), most of Europe and many other countries use liters per 100 km (L/100km), and some countries use km/L.
Key Differences:
- MPG and km/L: Higher number = better fuel economy
- L/100km: Lower number = better fuel economy (inverse relationship)
- US gallon ≠ imperial gallon (US: 3.785 L, Imperial: 4.546 L)
Conversion Factors:
- 1 US MPG = 0.4251 km/L
- 1 imperial MPG = 0.3540 km/L
- 30 US MPG ≈ 7.84 L/100km
- 1 US gallon = 3.785411784 liters (exact)
- 1 imperial gallon = 4.54609 liters (exact)
- 1 mile = 1.609344 km (exact)