⛽ Fuel Efficiency
MPG (US) to km/L Converter
Convert MPG (US) to km/L instantly with a reference conversion table.
Quick answer: To convert MPG (US) to km/L, multiply by 0.425144. For example, 1 MPG (US) = 0.425144 km/L. Use the calculator below for any value.
MPG (US) to km/L
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Common conversions
| MPG (US) | km/L |
|---|
Formula:
How to convert MPG (US) to km/L
1
Enter your value
Type the number of mpg (us) you want to convert into the left box. The result in km/l appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — km/L to MPG (US). Your current value carries across so you don't have to re-enter anything.
3
About MPG (US) and km/L
MPG (US) and km/L are common fuel measurements.
📊 Common conversions at a glance
| MPG (US) | km/L |
|---|---|
| 15 | 6.377 |
| 20 | 8.503 |
| 25 | 10.63 |
| 30 | 12.75 |
| 35 | 14.88 |
| 40 | 17.01 |
Reviewed for 2026. MPG (US) ↔ km/L conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.
Frequently asked questions
How do I convert MPG (US) to km/L?
To convert MPG (US) to km/L, multiply by 0.425144. Or use the calculator above for instant results.
How many km/L are in 1 MPG (US)?
1 MPG (US) equals 0.425144 km/L.
Is the MPG (US) to km/L converter free?
Yes, the MPG (US) to km/L converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.