Mpg US to Km Per Liter
1 mile / us gallon = 0.425144 km per liter (km/L)
Convert mpg us to km per liter instantly. 1 mile / us gallon = 0.425144 km per liter. Free, accurate, with conversion table and formula.
Mile / US Gallon (mpg (US))
Kilometer / Liter (km/L)
| Unit | 1 mpg (US) equals |
|---|---|
| Kilometer / Liter (km/L) | 0.425144 |
| Mile / US Gallon (mpg (US)) | 1 |
| Mile / Imp Gallon (mpg (UK)) | 1.20095 |
| Liter / 100km (L/100km) | 235.214 |
How to convert mpg us to km per liter
- 1Take your value in mpg us (mpg (US)).
- 2Multiply by 0.425144.
- 3The result is your value in km per liter (km/L).
Mpg US to Km Per Liter conversion table
| Mpg US (mpg (US)) | Km Per Liter (km/L) |
|---|---|
| 1 | 0.425144 |
| 2 | 0.850288 |
| 5 | 2.12572 |
| 10 | 4.25144 |
| 25 | 10.6286 |
| 50 | 21.2572 |
| 100 | 42.5144 |
| 250 | 106.286 |
| 500 | 212.572 |
| 1,000 | 425.144 |
Frequently asked
How many km per liter are in a mile / us gallon?
1 mile / us gallon equals 0.425144 km per liter (km/L).
How do I convert mpg us to km per liter?
Multiply the number of mpg us by 0.425144 to get km per liter.
What is 10 mpg us in km per liter?
10 mpg (US) equals 4.251 km/L.
What is 100 mpg us in km per liter?
100 mpg (US) equals 42.51 km/L.
How do I convert km per liter back to mpg us?
Multiply km per liter by 2.35214 (the reciprocal) or use the swap button above.
Where you'll actually use this
Fuel economy compares how far a vehicle travels per unit of fuel — or, inversely, how much fuel it uses per unit of distance.
- Buying a car
US listings show MPG (higher is better). Most of the rest of the world shows L/100 km (lower is better).
- Road trips
Estimate fuel cost: distance ÷ economy × price per gallon (or liter).
- Fleet management
Standardize across regions by converting all vehicles to the same metric.
Common mistakes to avoid
- MPG isn't linear
Going from 10 → 20 MPG saves much more fuel than 40 → 50 MPG, even though both jumps are '+10 MPG'.
- US MPG ≠ UK MPG
A UK (imperial) gallon is 20% larger than a US gallon, so UK MPG values are higher for the same vehicle.
Did you know?
L/100 km is directly proportional to fuel cost — twice the number means twice the bill. MPG isn't.
Related conversions
What people do next
Curated handoffs from this tool — picked, not guessed.
Your next conversion is one tap away.
Trending tools, your recent picks, and smart suggestions — curated, not cluttered.