Kilometers per liter to miles per imperial gallon
Type a value in kilometers per liter to see it in miles per imperial gallon straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the kilometers per liter box.
- Read the result in miles per imperial gallon as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
mpg (UK) = km/L × 2.824809363
Multiply the value in kilometers per liter by 2.824809363 to get miles per imperial gallon.
Example
To convert 25 km/L to miles per imperial gallon: 25 × 2.824809363 = 70.6202 mpg (UK).
Conversion table
| Kilometers per liter (km/L) | Miles per imperial gallon (mpg (UK)) |
|---|---|
| 1 | 2.82481 |
| 2 | 5.64962 |
| 3 | 8.47443 |
| 5 | 14.124 |
| 10 | 28.2481 |
| 20 | 56.4962 |
| 25 | 70.6202 |
| 50 | 141.24 |
| 100 | 282.481 |
| 250 | 706.202 |
| 500 | 1,412.4 |
| 1,000 | 2,824.81 |
About the units
- Kilometer per liter
- The number of kilometers a vehicle travels on one liter of fuel. A higher number means better economy.
- Mile per imperial gallon
- Miles per imperial gallon of 4.54609 liters, used in the United Kingdom. It reads higher than US mpg for the same car because the gallon is larger.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many miles per imperial gallon are in one kilometer per liter?
1 km/L = 2.82481 mpg (UK) exactly.
How do I convert kilometers per liter to miles per imperial gallon?
Use mpg (UK) = km/L × 2.824809363. For example, 25 km/L = 70.6202 mpg (UK).
How many kilometers per liter are in one mile per imperial gallon?
1 mpg (UK) = 0.354006 km/L.
Why is mpg to L/100 km not a simple multiplication?
The units are reciprocal: one is distance per fuel, the other fuel per distance. You divide about 235.215 by the US mpg value, so 30 mpg is about 7.84 L/100 km.
Why do US and UK mpg differ?
The imperial gallon is 4.54609 L and the US gallon is 3.785411784 L, so the same car shows about 20% more miles per gallon in UK figures.