MPG (US) to km/L Converter
Convert fuel economy from MPG to km per liter.
MPG (US) → km/L
Enter a value in MPG (US)•1 MPG (US) = 0.425144 km/L
MPG (US)
Decimals supported.
Result
km/L
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Enter a value to convert MPG (US) to 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
- 1Take the value in MPG (US) (e.g., 30).
- 2Multiply by 0.425144.
- 3The 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.
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
Q
How do I convert MPG to km/L?
Multiply US MPG by 0.425144 to get km/L.
Q
What is 30 MPG in km/L?
30 MPG (US) is about 12.7543 km/L.
Q
Is this for US gallons or imperial gallons?
This converter uses US gallons (MPG US).
Q
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.
Q
Is the factor 0.425 exact?
0.425144 is a rounded factor derived from exact mile and gallon-to-liter definitions.