Convert Kilometers per Liter to MPG (UK) (km/L to mpg UK)
1 kilometer per liter (km/L) = 2.824809363 miles per imperial gallon (mpg (UK)). 1 mpg (UK) = 0.3540061899 km/L. Example: 15 km/L = 15 × 2.824809363 = 42.37214045 mpg (UK).
Also searched as kilometers per liter to mpg UK, kilometers per liter in mpg UK, kilometers per liter into miles per imperial gallon, km/L to mpg UK, km/L in miles per imperial gallon, km/L into mile per imperial gallon, kilometer per liter to mile per imperial gallon, km/L to miles per imperial gallon converter, kilometres per litre to miles per imperial gallon and how many miles per imperial gallon in a kilometer per liter.
1 km/L = 2.824809363 mpg (UK)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilometer per liter to mile per imperial gallon converter to paste a column from Excel.
How to Convert Kilometer per Liter to MPG (UK)
- 1 km/L = 2.824809363 mpg (UK)
- 1 mpg (UK) = 0.3540061899 km/L
- Example: convert 15 km/L to mpg (UK): 15 km/L = 15 × 2.824809363 mpg (UK) = 42.37214045 mpg (UK)
Formula
mpg (UK) = km/L × 2.824809363318
Derivation from SI units:
- Distance in kilometres travelled on one litre of fuel.
- 1 mpg (UK) = 1.609344 km ÷ 4.54609 L = 0.354006189… km/L.
Both units are defined exactly, so the factor is exact. Kilometer per Liter definition: kilometer per liter; MPG (UK) definition: mile per imperial gallon.
Worked examples
- A reading of 12 km/L converts to 33.89771236 mpg (UK).
12 km/L × 2.824809363 = 33.89771236 mpg (UK) - A value of 20 km/L is 56.49618727 mpg (UK).
20 km/L × 2.824809363 = 56.49618727 mpg (UK)
Kilometer per Liter to MPG (UK) conversion table
| Kilometers per Liter (km/L) | MPG (UK) |
|---|---|
| 5 km/L | 14.12404682 mpg (UK) |
| 8 km/L | 22.59847491 mpg (UK) |
| 10 km/L | 28.24809363 mpg (UK) |
| 12 km/L | 33.89771236 mpg (UK) |
| 15 km/L | 42.37214045 mpg (UK) |
| 18 km/L | 50.84656854 mpg (UK) |
| 20 km/L | 56.49618727 mpg (UK) |
| 25 km/L | 70.62023408 mpg (UK) |
| 30 km/L | 84.7442809 mpg (UK) |
| 40 km/L | 112.9923745 mpg (UK) |
Where it's used
Kilometers per Liter are used for car mileage in India (kmpl), Japan and Brazil, while miles per imperial gallon appear in UK car advertising and reviews. Both measure fuel economy (distance per volume of fuel), so the conversion is a fixed factor.
Kilometer per Liter to other fuel economy units
| Conversion | 1 km/L equals |
|---|---|
| kilometer per liter to mile per imperial gallon | 2.824809363 mpg (UK) |
| kilometer per liter to liter per 100 kilometers | 100 L/100 km |
| kilometer per liter to mile per US gallon | 2.352145833 mpg |
Frequently asked questions
How many miles per imperial gallon are in 1 kilometer per liter?
1 km/L = 2.824809363 mpg (UK).
How do I convert kilometers per liter to miles per imperial gallon?
Multiply the value in km/L by 2.824809363. For example, 15 km/L × 2.824809363 = 42.37214045 mpg (UK).
Is the km/L to mpg (UK) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (radian) and Table 8 (non-SI units accepted for use with the SI).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "mile per gallon (U.K.)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilometers per Liter to MPG (UK) (km/L to mpg UK). Retrieved October 25, 2026, from https://scientificconverters.com/fuel-economy/kilometers-per-liter-to-miles-per-gallon-uk/
IEEE
Scientific Converters, "Convert Kilometers per Liter to MPG (UK) (km/L to mpg UK)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/fuel-economy/kilometers-per-liter-to-miles-per-gallon-uk/