Compare cars from any country in the same fuel economy unit.
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The US uses miles per US gallon, the UK miles per imperial gallon, Europe and Australia litres per 100 km, and India and Japan km per litre.
L/100 km is the reverse of MPG: lower is better. To convert, divide 235.2 by US MPG (or 282.5 by UK MPG).
| Fuel economy | 30 |
| Unit | MPG (US) |
| L/100 km | 7.841 |
| MPG (US) | 30 |
| MPG (UK, imperial) | 36.028 |
| km/L | 12.754 |
| Miles per litre | 7.925 |
7.841 L/100 km.
| Fuel economy | 5 |
| Unit | L/100 km |
| L/100 km | 5 |
| MPG (US) | 47.043 |
| MPG (UK, imperial) | 56.496 |
| km/L | 20 |
| Miles per litre | 12.427 |
47.043 MPG (US).
7.84 L/100 km (US gallons) or 9.42 L/100 km (UK gallons).
39.2 MPG (US) or 47.1 MPG (UK).
Because an imperial gallon is 20% bigger than a US gallon.
Under 6 L/100 km (about 40 MPG US) is good for a petrol car.