Fuel Efficiency Converter
Convert between MPG, L/100km, km/L instantly
Conversion Result:
L/100km
MPG (US)
MPG (UK)
L/100km
km/L
Understanding Fuel Efficiency Conversion
Our fuel efficiency converter tool helps you easily convert between different fuel economy measurements used around the world. Whether you’re comparing vehicle specifications, planning a road trip abroad, or simply curious about how your car’s efficiency stacks up internationally, this tool provides instant conversions.
Fuel efficiency is typically measured in miles per gallon (MPG) in the United States and United Kingdom, while most other countries use liters per 100 kilometers (L/100km) or kilometers per liter (km/L). Understanding these conversions is essential for global travelers, automotive enthusiasts, and eco-conscious drivers looking to optimize their vehicle’s performance and reduce fuel consumption.
Using our converter is simple: enter your value, select the unit you’re converting from, choose your target unit, and get instant results. The tool also displays all four common fuel efficiency measurements for easy comparison. Save on fuel costs and make informed decisions about your vehicle’s efficiency with our comprehensive conversion calculator.
Frequently Asked Questions
MPG (US) uses the US gallon (3.785 liters) while MPG (UK) uses the imperial gallon (4.546 liters). This means the same vehicle will show a higher MPG value in UK measurements than in US measurements.
For L/100km, lower values indicate better fuel efficiency since it measures fuel consumption. For MPG and km/L, higher values indicate better efficiency as they measure distance per unit of fuel.
Our conversions use standard mathematical formulas and are highly accurate for comparison purposes. However, real-world fuel efficiency can vary based on driving conditions, vehicle maintenance, and other factors.
Most European countries, Australia, and Canada use L/100km. The United States uses MPG, while the UK uses both MPG and L/100km (with MPG being more common in everyday use).
Yes, our fuel efficiency converter is fully responsive and works perfectly on all devices including smartphones and tablets.