Kilometers per liter (km/L) to Miles per UK gallon (mpg (imp)) Conversion
Kilometers per liter
Kilometres per litre (km/L) is the metric efficiency-based fuel economy measure used primarily in Japan, India, Latin America, and parts of Asia. Like mpg, higher values indicate greater efficiency — it is the metric analogue of miles per gallon. One km/L equals approximately 2.825 mpg (US) and is inversely related to L/100km: km/L = 100 ÷ L/100km. A Japanese kei car rated at 20 km/L achieves approximately 47 US mpg or 5 L/100km. The km/L unit is used in Japanese JC08 and WLTC fuel economy certification cycles.
Miles per UK gallon
Miles per UK gallon (mpg imp) measures fuel economy using the imperial gallon (4.54609 L), which is approximately 20% larger than the US gallon. As a result, the same vehicle achieves a higher mpg figure by the UK standard than by the US standard — a 40 mpg UK figure equals approximately 33.3 mpg US for the same vehicle. The UK mpg is still used in British automotive journalism and official government fuel economy testing, though EU-harmonised L/100km data is increasingly common since Brexit.
| Kilometers per liter (km/L) | Miles per UK gallon (mpg (imp)) |
|---|---|
| 0.1 km/L | 0.2825 mpg (imp) |
| 1 km/L | 2.8248 mpg (imp) |
| 2 km/L | 5.6496 mpg (imp) |
| 3 km/L | 8.4744 mpg (imp) |
| 5 km/L | 14.124 mpg (imp) |
| 10 km/L | 28.2481 mpg (imp) |
| 20 km/L | 56.4962 mpg (imp) |
| 30 km/L | 84.7443 mpg (imp) |
| 50 km/L | 141.2405 mpg (imp) |
| 100 km/L | 282.4809 mpg (imp) |
| 1000 km/L | 2,824.8093 mpg (imp) |
Frequently Asked Questions (FAQ)
How many miles per UK gallon are in 1 kilometers per liter?
1 kilometers per liter (km/L) is exactly 2.8248 miles per UK gallon (mpg (imp)).
How do I convert kilometers per liter to miles per UK gallon?
Multiply the value in kilometers per liter by 2.8248 to get the result in miles per UK gallon. Or use the converter above — type any number and see the result instantly.