Litres per 100 km to MPG (UK) Converter
Enter litres per 100 km to get mpg (UK) instantly. Works both ways.
How to convert L/100km to UK mpg
Fuel economy units are not simple multiples of each other. Miles per gallon measures distance per fuel, while litres per 100 km measures fuel per distance, so one is the inverse of the other. L/100km to UK mpg: divide 282.481 by the L/100km figure.
Need it the other way? Convert mpg (UK) to litres per 100 km.
Reference points
- 4 litres per 100 km = 70.62023 MPG (UK)
- 5 litres per 100 km = 56.49619 MPG (UK)
- 6 litres per 100 km = 47.08016 MPG (UK)
- 8 litres per 100 km = 35.31012 MPG (UK)
- 10 litres per 100 km = 28.24809 MPG (UK)
Why the conversion is not a simple multiple
Miles per gallon measures distance per unit of fuel, while litres per 100 km measures fuel per unit of distance, so one is the inverse of the other. The relationship is mpg = 282.4809 ÷ L/100 km for UK gallons, or 235.2146 ÷ L/100 km for US gallons.
L/100km to UK mpg chart
| Litres per 100 km | MPG (UK) |
|---|---|
| 3 L/100km | 94.1603 UK mpg |
| 3.5 L/100km | 80.7088 UK mpg |
| 4 L/100km | 70.6202 UK mpg |
| 4.5 L/100km | 62.7735 UK mpg |
| 5 L/100km | 56.4962 UK mpg |
| 5.5 L/100km | 51.3602 UK mpg |
| 6 L/100km | 47.0802 UK mpg |
| 6.5 L/100km | 43.4586 UK mpg |
| 7 L/100km | 40.3544 UK mpg |
| 7.5 L/100km | 37.6641 UK mpg |
| 8 L/100km | 35.3101 UK mpg |
| 9 L/100km | 31.3868 UK mpg |
| 10 L/100km | 28.2481 UK mpg |
| 12 L/100km | 23.5401 UK mpg |
| 15 L/100km | 18.8321 UK mpg |
| 20 L/100km | 14.124 UK mpg |
More fuel economy conversions
Frequently asked questions
Why does a higher number mean different things in litres per 100 km and MPG (UK)?
Miles per gallon rises as a car gets more efficient, while litres per 100 km falls, because one is distance per fuel and the other is fuel per distance.
What is 6 in MPG (UK)?
6 litres per 100 km = 47.08016 MPG (UK).