Gallons to Liters
Convert Gallons to Liters instantly. Free online volume unit converter with exact formula, conversion table and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Length Converter
Convert metric, imperial, and nautical distance units.
Context values
Some unit families need one extra value for a physically accurate result.
Use the converter to see the formula.
Results update instantly for Gallons to Liters conversions.
Reserved above the conversion cards and below the converter.
Formula
L = gal × 3.785411784
gal = L ÷ 3.785411784
Conversion table
| 1 gal | 3.78541 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 20 gal | 75.7082 L |
| 50 gal | 189.271 L |
| 100 gal | 378.541 L |
| 500 gal | 1892.71 L |
| 1000 gal | 3785.41 L |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Liters are in one Gallon?
One Gallon equals 3.785411784 L.
How do I convert Gallons to Liters?
Multiply the value in Gallons by 3.785411784 to get Liters. Formula: L = gal × 3.785411784.
Is this Gallons to Liters conversion exact?
Yes. It is based on internationally recognized unit definitions, so the factor 3.785411784 is exact to the precision shown.
When is Gallons to Liters commonly used?
It is commonly used for fuel, beverages, cooking, water storage, agriculture, laboratories, and everyday industrial liquid measurements.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
The Gallon and the Liter are both units of volume. The US gallon is a customary unit of liquid volume used mainly in the United States for measuring fuel, water, and beverages. The liter is the base metric unit of volume, widely used worldwide for liquids such as water, fuel, and beverages. To convert, multiply the Gallons value by 3.785411784 (formula: L = gal × 3.785411784). It is commonly used for fuel, beverages, cooking, water storage, agriculture, laboratories, and everyday industrial liquid measurements. This conversion factor is derived directly from the internationally accepted metric and customary unit definitions, so results are precise and repeatable.