MPG (US) to km/L Converter
Convert fuel economy from MPG to km per liter.
Result
0
km/L
1 MPG (US) = 0.425144 km/L
How to convert MPG (US) to km/L?
MPG (miles per gallon) is common in the US, while km/L is common in many metric countries. Using US gallons:
- 1 mile = 1.60934 km
- 1 US gallon = 3.78541 L
That leads to a convenient factor:
- 1 MPG (US) ≈ 0.425144 km/L
To convert MPG (US) to km/L, multiply by 0.425144.
Formula: km/L = MPG (US) × 0.425144
Step-by-Step Calculation
- Take the value in MPG (US) (e.g., 30).
- Multiply by 0.425144.
- The result is the value in km/L. (Example: 30 × 0.425144 ≈ 12.7543 km/L).
How to use this converter?
Enter MPG (US) and instantly get km/L—handy when comparing car mileage across different regions.
Common MPG to km/L Conversions
Quick reference guide for common MPG values.
10 MPG ≈ 4.25144 km/L
20 MPG ≈ 8.50288 km/L
25 MPG ≈ 10.6286 km/L
30 MPG ≈ 12.7543 km/L
35 MPG ≈ 14.880 km/L
40 MPG ≈ 17.0058 km/L
45 MPG ≈ 19.1315 km/L
50 MPG ≈ 21.2572 km/L
60 MPG ≈ 25.5086 km/L
15 MPG ≈ 6.37716 km/L
Tip: US MPG vs UK MPG
This converter is for US MPG. UK (imperial) gallons are larger, so UK MPG values convert differently.
Common MPG to km/L Conversions
| MPG (US) Input | km/L Result |
|---|---|
| 10 MPG | 4.25144 km/L |
| 15 MPG | 6.37716 km/L |
| 20 MPG | 8.50288 km/L |
| 25 MPG | 10.6286 km/L |
| 30 MPG | 12.7543 km/L |
| 35 MPG | 14.880 km/L |
| 40 MPG | 17.0058 km/L |
| 45 MPG | 19.1315 km/L |
| 50 MPG | 21.2572 km/L |
| 60 MPG | 25.5086 km/L |
Frequently Asked Questions
How do I convert MPG to km/L?
Multiply US MPG by 0.425144 to get km/L.
What is 30 MPG in km/L?
30 MPG (US) is about 12.7543 km/L.
Is this for US gallons or imperial gallons?
This converter uses US gallons (MPG US).
Why do conversions differ between US and UK MPG?
Because a UK (imperial) gallon is larger than a US gallon, so MPG values aren’t directly comparable.
Is the factor 0.425 exact?
0.425144 is a rounded factor derived from exact mile and gallon-to-liter definitions.