Liters to Gallons Converter

Liters to Gallons Converter

US Gallons
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UK Gallons
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1 US gallon = 3.78541 liters · 1 UK gallon = 4.54609 liters

How to convert liters to gallons

To convert liters to US gallons, divide by 3.78541 (or multiply by 0.264172). For example, 10 liters ÷ 3.78541 = 2.642 US gallons. To convert liters to UK gallons, divide by 4.54609.

Going the other way — to convert US gallons to liters — multiply by 3.78541. So 5 US gallons × 3.78541 = 18.927 liters.

An important distinction: the US gallon and the UK (imperial) gallon are significantly different. A US gallon = 3.785 liters, while a UK gallon = 4.546 liters. Always check which gallon a recipe, fuel gauge, or specification uses.

Liters to gallons conversion table

Liters (l) US Gallons UK Gallons
1 l0.264 gal0.220 gal
2 l0.528 gal0.440 gal
3.785 l1.000 gal (US)0.833 gal
4.546 l1.201 gal1.000 gal (UK)
5 l1.321 gal1.100 gal
10 l2.642 gal2.200 gal
20 l5.283 gal4.399 gal
40 l10.567 gal8.799 gal
50 l13.209 gal10.998 gal
100 l26.417 gal21.997 gal
1000 l264.172 gal219.969 gal

Frequently asked questions

How many liters are in a gallon?
1 US gallon = 3.78541 liters. 1 UK (imperial) gallon = 4.54609 liters. The US and UK gallon are significantly different — always check which one is being used.
How many liters is 5 gallons?
5 US gallons = 18.927 liters. 5 UK gallons = 22.730 liters. Calculation: 5 × 3.78541 = 18.93 liters (US).
How many gallons is 10 liters?
10 liters = 2.642 US gallons = 2.200 UK gallons. Calculation: 10 ÷ 3.78541 = 2.642 US gallons.
How many liters is a gas tank?
Most passenger car fuel tanks hold between 45 and 70 liters (12 to 18 US gallons). A typical sedan holds about 50 liters (13.2 US gallons).
Why are US and UK gallons different?
The US gallon is based on the wine gallon used in England before 1824, when Britain standardized the imperial gallon. The US kept the old definition. A UK gallon = 4.546 liters while a US gallon = 3.785 liters — about 20% larger.