km/L to MPG Converter
Enter the fuel economy in km/l below to convert it to mpg.
Convert km/L to MPG (US)
Enter a value in km/l (km/L) to convert to mpg (us) (MPG (US)).
Kilometers per Liter to Miles per Gallon Conversion Table
Table showing various kilometers per liter measurements converted to mpg. Click any preset value or arrow to load it into the converter.
| km/L (km/L) | MPG (US) (MPG (US)) |
|---|---|
| 1 km/L | 2.3521458 MPG (US) |
| 2 km/L | 4.7042917 MPG (US) |
| 5 km/L | 11.7607291 MPG (US) |
| 6 km/L | 14.112875 MPG (US) |
| 7 km/L | 16.4650208 MPG (US) |
| 8 km/L | 18.8171666 MPG (US) |
| 10 km/L | 23.5214583 MPG (US) |
| 12 km/L | 28.22575 MPG (US) |
| 15 km/L | 35.2821875 MPG (US) |
| 20 km/L | 47.0429166 MPG (US) |
How to Convert km/L to MPG
To convert km/l (km/L) to mpg (MPG (US)), apply the governing fuel efficiency relationship: MPG (US) = km/L × 2.35215.
Use this formula to convert between km/l and mpg:
Fuel consumption and distance-per-volume efficiency scales are related by exact international volume and mile/kilometer constants.
For example, here's how to convert 15 km/L to mpg using the formula above:
How Many MPG Are in a Kilometers per Liter?
There are 2.3521458 mpg in a kilometers per liter, which is why we use this value in the formula above.
Our kilometers per liter to miles per gallon calculator automatically converts your fuel economy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
km/L and mpg are both units used to measure fuel economy. Keep reading to learn more about each unit.
What Is a Kilometers per Liter?
Kilometers traveled per liter of fuel. It serves as a primary reference unit for measuring fuel economy across scientific and practical applications. [1]
The kilometers per liter is classified as a metric and SI-compatible unit of fuel economy. km/L can be abbreviated as km/L; for example, 1 kilometers per liter can be written as 1 km/L.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilometers per liter (km/L) a convenient decimal multiple of the miles per gallon (MPG (US)).
In practice, km/l (km/L) are widely used across standard fuel economy applications within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Miles per Gallon?
Miles traveled per US liquid gallon. It serves as a primary reference unit for measuring fuel economy across scientific and practical applications. [2]
The miles per gallon is classified as a US customary unit of fuel economy. MPG can be abbreviated as MPG (US); for example, 1 miles per gallon can be written as 1 MPG (US).
As the primary coherent reference unit for fuel economy in this category, all other fuel economy units are mathematically anchored to the miles per gallon (MPG (US)).
In practice, mpg (MPG (US)) are widely used across standard fuel economy applications within US customary workflows, engineering documentation, and technical data sheets.
When converting fuel economy between km/l (km/L) and mpg (MPG (US)), keep full floating-point precision (1 km/L = 2.3521458 MPG (US); 1 MPG (US) = 0.4251437 km/L) during intermediate calculations and round only the final miles per gallon figure to match your instrument tolerance.
More Kilometers per Liter & Miles per Gallon (US) Conversions
Need to calculate in the opposite direction? Use our mpg (us) to km/l converter (MPG (US) to km/L) to switch your starting unit immediately. You can also explore related tools such as converting l/100km to mpg (us), converting mpg (uk) to mpg (us), or converting km/l to l/100km.
Convert from km/L
Convert to Miles per Gallon (US)
Frequently Asked Questions
References
- [1]DOE / EPA StandardDOE / EPA (EPA 40 CFR Part 600 Fuel Economy)·Fuel Economy Metrology Standard — km/L (km/L) to MPG (US) (MPG (US))
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Fuel Consumption))·Unit Specifications: Kilometers per Liter (km/L) & Miles per Gallon (US) (MPG (US))
- [3]NIST OWM ReferenceNIST OWM (SI Units — Volume (US vs. Imperial Gallon))·Conversion Factors & Mathematical Basis (km/L to MPG (US))