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MPG ↔ L/100km Fuel Converter
Type L/100km or MPG — the other side updates together.
Formula
MPG(US) = 235.215 / (L/100km) | MPG(UK) = 282.481 / (L/100km) | km/L = 100 / (L/100km)
Reference Points
| L/100km | MPG US | Verdict |
|---|---|---|
| 4 | 58.8 | Very efficient (hybrid) |
| 6 | 39.2 | Efficient |
| 8 | 29.4 | Average |
| 12 | 19.6 | High consumption |
FAQ
Why is MPG divided while L/100km is multiplied?
They are inverses: MPG measures distance per fuel, L/100km measures fuel per distance. That is why bigger MPG = better, but bigger L/100km = worse.
Is UK MPG the same as US MPG?
No — the imperial gallon is 4.546 L vs the US gallon 3.785 L, so UK MPG figures are about 20% higher for the same car.