Miles per Liter (mi/L) to Miles per Gallon US (mpg US)

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Miles per Liter (mi/L) to Miles per Gallon US (mpg US) conversion table

Here are the most common conversions for Miles per Liter (mi/L) to Miles per Gallon US (mpg US) at a glance.

Miles per Liter (mi/L)	Miles per Gallon US (mpg US)
0.1	0.37854118
0.5	1.89270589
1	3.78541178
2	7.57082357
3	11.35623535
5	18.92705892
10	37.85411784
20	75.70823568
30	113.56235352
50	189.27058920
100	378.54117840

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Converting Miles per Liter (mi/L) to Miles per Gallon US (mpg US)

Fuel economy is the odd one out among conversions: it is usually a rate, and converting Miles per Liter (mi/L) to Miles per Gallon US (mpg US) means flipping between "fuel per distance" (liters per 100 km) and "distance per fuel" (miles per gallon) — which are mathematical inverses, not simple multiples. Better economy means a smaller L/100km number but a larger mpg number.

The Two MPG Problem

US gallons (3.785 L) and imperial gallons (4.546 L) differ by 20%, so "30 mpg" means two different things depending on which side of the Atlantic you are on — always check. The conversion everyone should know: 235.21 ÷ mpg (US) = L/100km, which lets you compare any car review worldwide.

Practical Tips

Comparing cars? Convert everything to L/100km — it is linear, so halving it truly halves your fuel bill, while mpg improvements have diminishing returns (going 10→20 mpg saves far more fuel than 30→40). For EVs, the emerging standard is kWh/100km or miles/kWh — same inverse logic.