Fuel Consumption Converter
Free Fuel Consumption Converter — Convert L/100km, MPG, km/L & More Instantly
Convert fuel consumption between any units instantly with OmniConverter's free fuel consumption converter. Supports liters per 100 km (L/100km), miles per US gallon (MPG), miles per UK gallon, kilometers per liter (km/L), and gallons per 100 miles. Whether you're comparing vehicle efficiency across different measurement systems, calculating fuel costs for a road trip, or evaluating the economy of a new car purchase, our converter delivers precise, instant results.
How It Works
Convert in three simple steps.
Enter Your Fuel Economy Value
Type the fuel consumption value you want to convert into the Input Value field. For example, enter 8 to convert 8 L/100km, or 30 to convert 30 MPG.
Select Source and Target Units
Choose your input unit on the left (e.g., L/100km, MPG US, MPG UK, km/L, gal/100mi) and your desired output unit on the right dropdown menu.
Get Your Converted Fuel Economy
The converted value appears instantly. The tool automatically handles the inverse relationship between volume-per-distance (L/100km) and distance-per-volume (MPG) units so you always get the right result.
Popular Conversions
Common Benchmarks
Reference
1 L/100km → L/100km
1 L/100km
Reference
1 L/100km → MPG (US)
235.214583 MPG (US)
Reference
1 L/100km → MPG (UK)
282.480936 MPG (UK)
Reference
1 L/100km → km/L
100 km/L
Reference
1 L/100km → m/L
100000 m/L
Reference
1 L/100km → gal (US)/100mi
0.425143708 gal (US)/100mi
Reference
1 L/100km → gal (UK)/100mi
0.3540062355 gal (UK)/100mi
Reference
1 L/100km → km/gal (US)
378.5411784 km/gal (US)
Real-World Use Cases
Fuel consumption conversion is essential for comparing vehicle efficiency across countries (European L/100km vs US MPG), calculating fuel costs for road trips when renting cars abroad, evaluating the fuel economy of a potential car purchase from a manufacturer that uses a different measurement system, understanding fuel consumption figures in automotive reviews and magazines, and converting specifications when importing or exporting vehicles between markets that use different units.
Frequently asked questions
Quick answers to common conversion questions
How do I convert L/100km to MPG?+
Divide 235.21 by your L/100km value to get US MPG. For example, 8 L/100km = 29.4 MPG.
What is the difference between US MPG and UK MPG?+
A US gallon (3.785 L) is smaller than a UK gallon (4.546 L), so UK MPG numbers are higher for the same vehicle.
How do I convert MPG to L/100km?+
Divide 235.21 by your MPG value to get L/100km. For example, 30 MPG = 7.84 L/100km.
What is km/L and how does it relate to L/100km?+
km/L measures how many kilometers you can travel per liter. Divide 100 by km/L to get L/100km.
Why do different countries use different fuel consumption units?+
L/100km is used throughout Europe and Canada, MPG in the US and UK, and km/L in parts of Asia and Africa.
Is higher or lower L/100km better?+
Lower L/100km is better — it means the vehicle uses less fuel to travel the same distance.
Is higher or lower MPG better?+
Higher MPG is better — it means the vehicle travels further on the same amount of fuel.
What is the average fuel consumption for a car?+
The average modern car consumes about 6-8 L/100km (30-40 MPG), depending on size and engine.
Can I convert fuel consumption for electric vehicles?+
EV efficiency is usually measured in kWh/100km rather than fuel consumption, as EVs don't consume liquid fuel.
How accurate are the fuel consumption conversions?+
Conversions use exact mathematical formulas based on the US gallon (3.785411784 L) and UK gallon (4.54609 L).











