Fuel Consumption Converter
Convert fuel economy between MPG (US), MPG (UK), L/100 km and km/L quickly and accurately.
Fuel Consumption Converter
Convert fuel economy and fuel consumption measurements quickly with our free online Fuel Consumption Converter. Convert between MPG (US), MPG (UK), L/100 km and km/L with accurate results.
This tool is useful when comparing vehicle fuel economy figures from different countries and measurement systems. Whether you want to convert MPG to L/100 km, L/100 km to MPG, or km/L to MPG, you can get the result instantly.
How to Use the Fuel Consumption Converter
- Enter your fuel economy value.
- Select the unit you are converting from.
- Select the unit you want to convert to.
- The conversion result will appear automatically.
- Use Swap to reverse the units.
- Click Copy Result to copy the conversion.
Supported Fuel Consumption Units
This converter supports:
- MPG (US)
- MPG (UK)
- Liters per 100 kilometers (L/100 km)
- Kilometers per liter (km/L)
What Is MPG?
MPG means miles per gallon. It describes how many miles a vehicle can travel using one gallon of fuel.
A higher MPG value generally means the vehicle can travel farther using the same amount of fuel.
What Is L/100 km?
L/100 km means liters of fuel consumed to travel 100 kilometers.
Unlike MPG, a lower L/100 km value generally represents better fuel efficiency because the vehicle uses less fuel to travel the same distance.
US MPG vs UK MPG
US MPG and UK MPG are different measurements because a US gallon and an Imperial gallon have different volumes.
For this reason, this converter treats MPG (US) and MPG (UK) as separate units rather than treating them as the same measurement.
📊 Common Fuel Economy Conversions
US MPG to L/100 km
| US MPG | L/100 km |
|---|---|
| 20 MPG | 11.7607 |
| 25 MPG | 9.4086 |
| 30 MPG | 7.8405 |
| 35 MPG | 6.7204 |
| 40 MPG | 5.8804 |
| 50 MPG | 4.7043 |
L/100 km to US MPG
| L/100 km | US MPG |
|---|---|
| 5 | 47.0429 |
| 6 | 39.2024 |
| 7 | 33.6021 |
| 8 | 29.4018 |
| 9 | 26.1349 |
| 10 | 23.5215 |
❓ FAQ
What is a Fuel Consumption Converter?
A Fuel Consumption Converter converts vehicle fuel economy measurements between units such as MPG, L/100 km and km/L.
How do I convert MPG to L/100 km?
For US MPG, the approximate formula is:
L/100 km = 235.214583 ÷ US MPG
For UK MPG:
L/100 km = 282.481 ÷ UK MPG
How do I convert L/100 km to MPG?
For US MPG:
US MPG = 235.214583 ÷ L/100 km
For UK MPG:
UK MPG = 282.481 ÷ L/100 km
Is US MPG the same as UK MPG?
No. US MPG and UK/Imperial MPG are different because the US gallon and Imperial gallon have different volumes.
Is a higher MPG better?
Generally, yes. A higher MPG means a vehicle can travel more miles using one gallon of fuel.
Is lower L/100 km better?
Generally, yes. A lower L/100 km means the vehicle uses less fuel to travel 100 kilometers.
How do I convert km/L to L/100 km?
Use:
L/100 km = 100 ÷ km/L
For example, 10 km/L = 10 L/100 km.
Is this Fuel Consumption Converter free?
Yes. It is free to use and does not require registration or an API key.
Does it work on mobile devices?
Yes. The converter has a responsive design for smartphones, tablets and desktop computers.
What Is MPG?
MPG means miles per gallon. It describes how many miles a vehicle can travel using one gallon of fuel.
A higher MPG value generally means the vehicle can travel farther using the same amount of fuel.