The formula and common values for converting between MPG and L/100km. For the reasoning behind these numbers, see Understanding Fuel Economy.
| MPG (US) | L/100km |
|---|---|
| 20 MPG | 11.76 L/100km |
| 30 MPG | 7.84 L/100km |
| 40 MPG | 5.88 L/100km |
| 50 MPG | 4.70 L/100km |
The Fuel Economy Converter converts between MPG (US), MPG (UK), and L/100km instantly.
Fuel Economy Converter
MPG measures efficiency, more is better. L/100km measures consumption, less is better. They’re inversely related, not a simple straight-line conversion.
No. The US gallon (3.785 L) and UK imperial gallon (4.546 L) are different sizes, so a UK MPG figure reads higher than a US MPG figure for the same actual efficiency.
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