MPG to Liters per 100km Converter
Use this free MPG to liters per 100km converter to instantly convert fuel economy measurements. Simply type any value, and the result updates automatically in real time—no need to press a button.
This tool is designed specifically for Canadians who regularly compare fuel efficiency between imperial and metric systems when researching vehicles, buying cars from the U.S., or reviewing fuel economy ratings online.
MPG ↔ L/100km Converter
Quick Conversion Table
| MPG | L/100km |
| 15 | 15.68 |
| 20 | 11.76 |
| 25 | 9.41 |
| 30 | 7.84 |
| 35 | 6.72 |
| 40 | 5.88 |
What Is Miles Per Gallon (MPG)?
Miles per gallon (MPG) is a unit used in the imperial system to measure fuel efficiency, most commonly in the United States. It represents how many miles a vehicle can travel using one gallon of fuel.
In this system, a higher MPG means better fuel efficiency, because the vehicle can travel farther using less fuel.
MPG is commonly used in:
- U.S. vehicle listings
- Car review websites
- Automotive specifications
- Imported vehicle details
Because Canada is closely connected to the U.S. automotive market, MPG is frequently seen by Canadians when researching vehicles.
What Is Liters per 100 Kilometers (L/100km)?
Liters per 100 kilometers (L/100km) is the official fuel consumption unit used in Canada. It measures how many liters of fuel a vehicle uses to travel 100 kilometers.In this system, a lower number means better fuel efficiency, because the vehicle uses less fuel over the same distance.
For example:
A car with 6 L/100km is more efficient than a car with 9 L/100km.
This unit is used across Canada for:
- Government fuel ratings
- Vehicle labels
- Car dealership listings
- Fuel economy comparisons
How to Convert MPG to L/100km
To convert miles per gallon to liters per 100 kilometers, you use the formula:
- L/100km = 235.215 ÷ MPG
Example conversions:
- 20 MPG = 11.76 L/100km
- 25 MPG = 9.41 L/100km
- 30 MPG = 7.84 L/100km
- 40 MPG = 5.88 L/100km
Because this calculation involves division, using an automatic calculator like this ensures faster and more accurate results.
How to Convert L/100km to MPG
To convert liters per 100 kilometers back to miles per gallon, you reverse the formula:
- MPG = 235.215 ÷ (L/100km)
Example conversions:
- 5 L/100km = 47.04 MPG
- 7 L/100km = 33.60 MPG
- 10 L/100km = 23.52 MPG
Using both conversion tools makes it easier to compare vehicles across different systems.
What’s the Difference Between Metric and Imperial Systems?
The metric and imperial systems measure fuel efficiency in opposite ways, which often causes confusion.
Metric System (used in Canada):
- Measures fuel used over distance
- Uses liters per 100 kilometers (L/100km)
- Lower values = better efficiency
Imperial System (used in the U.S.):
- Measures distance traveled per fuel used
- Uses miles per gallon (MPG)
- Higher values = better efficiency
Because the systems are inverse of each other, converting between them requires a formula rather than a simple multiplication.
Does Canada Use MPG or L/100km?
Canada officially uses liters per 100 kilometers (L/100km) for fuel economy. However, MPG is still widely used and recognized due to U.S. influence.
MPG is commonly seen in:
- U.S. vehicle listings and advertisements
- Online automotive reviews
- Imported car specifications
- Cross-border vehicle comparisons
As a result, Canadians often need to convert MPG into L/100km to fully understand fuel efficiency.
Where Is This Conversion Commonly Used?
MPG to L/100km conversion is widely used across everyday situations in Canada:
Buying or Importing a Car: Comparing Canadian fuel ratings with U.S. listings requires quick conversion.
Vehicle Comparisons: Comparing different models requires consistent units for accuracy.
Cross-Border Research: Many Canadians compare vehicles using U.S. websites and reviews.
Fuel Cost Estimation: Understanding L/100km helps estimate fuel costs more accurately in Canada.
Road Trip Planning: Knowing fuel efficiency helps calculate fuel usage over long distances.
ALLREVIEW Trivia – Did You Know?
- The formula constant 235.215 is derived from converting miles to kilometers and gallons to liters.
- MPG values can differ between U.S. gallons and UK gallons, but Canada typically uses U.S. MPG for comparison.
- Fuel efficiency standards in Canada are regulated and displayed in L/100km on vehicle labels.
- Electric vehicles sometimes use equivalent L/100km ratings to help consumers compare energy efficiency.
- Understanding both MPG and L/100km is essential when comparing vehicles across North America.
MPG to Liters per 100km FAQs
More Conversion Tools:
Length: cm to in, in to cm, km to mi, mi to km, m to ft, ft to m, ft to in, in to ft
Weight: kg to lb, lb to kg, g to oz, oz to g
Volume: L to gal, gal to L, mL to cups, cups to mL, mL to oz, oz to mL, tbsp to mL, mL to tbsp
Area: m² to sq ft, sq ft to m²
Others: °C to °F, °F to °C, L/100km to MPG, MPG to L/100km