Fuel Economy Converter
Convert between US MPG, UK MPG, L/100km, and km/L fuel efficiency units instantly.
Enter Fuel Economy
Conversions
| Unit | Value | Description |
|---|---|---|
US MPG Input | 30.00 | US MPG (miles per US gallon) |
UK MPG | 36.03 | UK MPG (miles per imperial gallon) |
L/100km | 7.84 | L/100km (litres per 100 kilometres) |
km/L | 12.75 | km/L (kilometres per litre) |
Efficiency Rating (7.84 L/100km)
Very poor (25 L/100km)
Excellent (4 L/100km)
Vehicle Benchmarks
Hypercar (Bugatti Chiron)
Large SUV / Pickup
Average new car (US 2024)
Average new car (EU 2024) ← your value
Efficient hatchback
Hybrid (Toyota Prius)
Best production ICE car
Fuel Economy Converter — MPG, L/100km, km/L
Convert between all four common fuel economy units: US MPG (miles per US gallon), UK MPG (miles per imperial gallon), L/100km (litres per 100 kilometres, used in most of Europe, Australia, and India), and km/L (kilometres per litre, used in Japan and some Asian markets). Key conversion facts: 1 UK gallon = 4.546 L; 1 US gallon = 3.785 L; to convert US MPG to L/100km divide 235.215 by the MPG value; to convert UK MPG to L/100km divide 282.481. The efficiency rating benchmarks give context: the EU fleet average in 2024 was approximately 6.5 L/100km (43 UK MPG / 36 US MPG).