Miles per Gallon (Imperial) to Kilometers per Liter Converter
One Miles per Gallon (Imperial) equals 0.3540061904 Kilometers per Liter (1 mpg-imp = 0.3540061904 km-l). Multiply a Miles per Gallon (Imperial) value by 0.3540061904 to get the equivalent in Kilometers per Liter. The calculator is above; the formula and worked examples are below.
Formula
km/L = mpg imp × 0.3540061904
Multiply the positive Miles per Gallon (Imperial) value by 0.3540061904 to get Kilometers per Liter. Both units measure fuel economy in the same direction.
Example Conversions
1 Miles per Gallon (Imperial) (mpg-imp)
0.3540061904 Kilometers per Liter (km-l)
5 Miles per Gallon (Imperial) (mpg-imp)
1.770030952 Kilometers per Liter (km-l)
10 Miles per Gallon (Imperial) (mpg-imp)
3.540061904 Kilometers per Liter (km-l)
25 Miles per Gallon (Imperial) (mpg-imp)
8.850154759 Kilometers per Liter (km-l)
100 Miles per Gallon (Imperial) (mpg-imp)
35.40061904 Kilometers per Liter (km-l)
Conversion Table
| Miles per Gallon (Imperial) (mpg-imp) | Kilometers per Liter (km-l) |
|---|---|
| 0.1 | 0.03540061904 |
| 0.5 | 0.1770030952 |
| 1 | 0.3540061904 |
| 2 | 0.7080123807 |
| 5 | 1.770030952 |
| 10 | 3.540061904 |
| 25 | 8.850154759 |
| 50 | 17.70030952 |
| 100 | 35.40061904 |
| 250 | 88.50154759 |
| 500 | 177.0030952 |
| 1000 | 354.0061904 |
How to Convert Manually
Use these steps to convert Miles per Gallon (Imperial) values to Kilometers per Liter without the calculator.
- Write down the value in Miles per Gallon (Imperial) (mpg-imp) that you want to convert.
- Apply the formula: km/L = mpg imp × 0.3540061904.
- For example, converting 10 Miles per Gallon (Imperial) gives 3.540061904 Kilometers per Liter.
- Label the result as Kilometers per Liter (km-l).
About Miles per Gallon (Imperial) and Kilometers per Liter
Miles per imperial gallon uses the larger UK gallon (4.54609 L), so the same car scores about 20% higher than in US mpg. UK car reviews and older Commonwealth figures use it. Kilometers per liter measures distance per unit fuel in metric terms. Higher is better. Japan, India, and much of Asia and Latin America quote car economy in km/L. One Miles per Gallon (Imperial) equals 0.3540061904 Kilometers per Liter (1 mpg-imp = 0.3540061904 km-l). Miles per Gallon (Imperial) is used in UK car reviews and adverts and in comparing UK and US economy figures. Kilometers per Liter is used in car economy in Japan, India, and Asia.
Precision and Rounding:Fuel economy units are reciprocal of each other: consumption (L/100 km) falls as efficiency (mpg, km/L) rises, so conversions are formula-based, not simple factors, and small mpg differences matter more at low values than high ones. One decimal place is standard for window stickers and trip computers.
Fuel-economy results use exact volume and distance definitions with the reciprocal formulas shown on each page (reference).
Worked Example
15Miles per Gallon (Imperial) equals5.310092855Kilometers per Liter.
15 mpg-imp -> 5.310092855 km-l
FAQ
How do I convert Miles per Gallon (Imperial) to Kilometers per Liter?
Multiply the positive Miles per Gallon (Imperial) value by 0.3540061904 to get Kilometers per Liter. Both units measure fuel economy in the same direction.
What is the formula for Miles per Gallon (Imperial) to Kilometers per Liter?
The formula is km/L = mpg imp × 0.3540061904.
How many Kilometers per Liter are in 1 Miles per Gallon (Imperial)?
1 Miles per Gallon (Imperial) equals 0.3540061904 Kilometers per Liter.
Can I convert Kilometers per Liter back to Miles per Gallon (Imperial)?
Yes. 1 Kilometers per Liter equals 2.82480936 Miles per Gallon (Imperial), and the related converter can reverse the calculation.
What are common names for Miles per Gallon (Imperial) and Kilometers per Liter?
Miles per Gallon (Imperial) is shown as mpg-imp and may also be searched as mpg imp, imperial mpg, UK mpg. Kilometers per Liter is shown as km-l and may also be searched as km/L, km/l, kilometres per litre.
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