Gallons UK per 100 Miles (gal UK/100 mi) to Liters per 100 Kilometers (L/100 km)

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Gallons UK per 100 Miles (gal UK/100 mi) to Liters per 100 Kilometers (L/100 km) conversion table

Here are the most common conversions for Gallons UK per 100 Miles (gal UK/100 mi) to Liters per 100 Kilometers (L/100 km) at a glance.

Gallons UK per 100 Miles (gal UK/100 mi)	Liters per 100 Kilometers (L/100 km)
0.1	0.28248094
0.5	1.41240468
1	2.82480936
2	5.64961873
3	8.47442809
5	14.12404682
10	28.24809363
20	56.49618727
30	84.74428090
50	141.24046817
100	282.48093633

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Converting Gallons UK per 100 Miles (gal UK/100 mi) to Liters per 100 Kilometers (L/100 km)

Fuel economy is the odd one out among conversions: it is usually a rate, and converting Gallons UK per 100 Miles (gal UK/100 mi) to Liters per 100 Kilometers (L/100 km) 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.