Fuel Economy Converter
Convert between miles per gallon, kilometers per liter, and other fuel economy units
About Fuel Economy Converter
Understanding Fuel Economy
Fuel economy measurements vary significantly across regions, reflecting different historical developments and preferences. The United States and United Kingdom both use miles per gallon (MPG), but their gallons differ in size. Meanwhile, most other countries use metric measurements like liters per 100 kilometers (L/100km) or kilometers per liter (km/L). These differences can make international comparisons challenging and highlight the importance of standardized conversion tools.
Regional Standards
| Region | Primary Unit | Typical Range |
|---|---|---|
| United States | MPG (US) | 20-50 |
| United Kingdom | MPG (UK) | 25-60 |
| Europe | L/100km | 4-8 |
| Japan | km/L | 10-20 |
Conversion Factors
Volume Conversions
- 1 US gallon = 3.78541 liters
- 1 UK gallon = 4.54609 liters
- 1 UK gallon = 1.20095 US gallons
Distance Conversions
- 1 mile = 1.60934 kilometers
- 100 kilometers = 62.1371 miles
Environmental Impact
CO2 Emissions
- Gasoline: ~2.3 kg CO2/L
- Diesel: ~2.7 kg CO2/L
- Better MPG = Lower emissions
- EVs: 0 direct emissions
Efficiency Standards
- US CAFE standards
- EU CO2 regulations
- Japan's Top Runner
- China's fuel consumption limits
Factors Affecting Fuel Economy
Vehicle Factors
- Engine size and efficiency
- Vehicle weight
- Aerodynamics
- Tire pressure
- Maintenance condition
External Factors
- Driving style
- Traffic conditions
- Weather and temperature
- Road conditions
- Altitude
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