MPG to L/100 km converter
Convert any fuel-economy figure between US miles per gallon, Imperial (UK/older Canadian) miles per gallon, litres per 100 km and kilometres per litre.
- L/100 km
- 7.8
- MPG (US)
- 30.0
- MPG (Imp)
- 36.0
- km/L
- 12.8
Lower L/100 km is better; higher MPG and km/L are better.
MPG to L/100 km conversion table
| MPG | L/100 km (from US MPG) | L/100 km (from Imperial MPG) |
|---|---|---|
| 15 | 15.7 | 18.8 |
| 20 | 11.8 | 14.1 |
| 25 | 9.4 | 11.3 |
| 30 | 7.8 | 9.4 |
| 35 | 6.7 | 8.1 |
| 40 | 5.9 | 7.1 |
| 45 | 5.2 | 6.3 |
| 50 | 4.7 | 5.6 |
| 60 | 3.9 | 4.7 |
Formulas
- L/100 km = 235.215 ÷ US MPG
- L/100 km = 282.481 ÷ Imperial MPG
- km/L = 100 ÷ L/100 km
- Imperial MPG ≈ US MPG × 1.201
A US gallon is 3.785 litres and an Imperial gallon is 4.546 litres, which is why the same car shows a higher MPG figure in Imperial units. Read the full explanation in our guide to converting fuel economy, or estimate what a car will cost you to run with the fuel cost calculator.