Liters to US Gallons Converter

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Convert liters to US gallons using the exact factor 1 US gallon = 3.785411784 L, which gives 1 L ≈ 0.26417 US gal. Most US fuel pumps, milk jugs and paint cans are sized in US gallons, so this is the right page when a metric volume needs to be reported in US units. UK imperial gallons (4.546 L) are a separate page — use it for British fuel-economy figures.

Liter (L)
Gallon (US)

Liter (L) → Gallon (US)

Quick reference table

Liter (L)Gallon (US)
1 L0.2642 gal (US)
2 L0.5283 gal (US)
5 L1.3209 gal (US)
10 L2.6417 gal (US)
25 L6.6043 gal (US)
50 L13.2086 gal (US)
100 L26.4172 gal (US)

Glossary

Liter (L)

A liter is the standard metric unit of volume, equal to 1 cubic decimeter (1 L = 1000 ml = 0.001 m³). It is used worldwide for beverages, fuel sold in metric markets, kitchen recipes and small-scale chemistry. One US gallon holds about 3.785 L; one UK imperial gallon holds about 4.546 L. The symbol is "L" or "l" (capital L preferred to avoid confusion with the digit 1).

US gallon

A US liquid gallon is exactly 231 cubic inches, or 3.785411784 L. It is the everyday US unit for fuel, milk, paint and bulk household liquids. One US gallon contains 4 quarts, 8 pints or 128 US fluid ounces. The UK imperial gallon (≈4.546 L) is about 20 % larger and is a different unit — always check which is meant.

Metric / SI volume

In the metric system, volume is reported in liters (everyday) or cubic meters (industrial), with millilters for fine resolution. The relations are exact powers of ten: 1 m³ = 1,000 L = 1,000,000 ml, and 1 ml = 1 cm³. The metric system is the standard worldwide for science, beverages, fuel in metric countries, and most modern recipes outside the United States.

Imperial / US Customary volume

US customary and UK imperial systems both use gallon, quart, pint and fluid ounce — but with different sizes. The US gallon is 3.785 L (128 US fl oz); the UK imperial gallon is 4.546 L (160 UK fl oz). Cooking units (tsp = 4.93 ml, tbsp = 14.79 ml, cup = 240 ml) follow the US standard in nearly all modern English-language recipes.

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