Convert Liters to Gallons Accurately

The exact conversion factor between liters and US gallons is: 1 US gallon = 3.785411784 liters.

Conversely, 1 liter = 0.2641720524 US gallons. For most practical purposes, these values are often rounded to 3.785 L per gallon or 0.264 gal per liter, but our converter uses the full precision.

Six decimal places of precision is useful for:

• Scientific experiments requiring precise measurements
• Industrial applications where large volumes are converted
• Financial calculations involving expensive liquids (fuels, chemicals)
• International trade where small differences affect costs
• Recipe scaling in commercial food production

For everyday use, you can easily switch to fewer decimal places using the precision selector.

There are two main definitions of gallons:

• US liquid gallon: Used in the United States, equals 3.78541 liters
• Imperial gallon: Used in the United Kingdom and some Commonwealth countries, equals 4.54609 liters

This converter uses US gallons by default, which is the standard measurement in the United States for liquid volumes.

Liters to gallons conversion is commonly needed in:

• Cooking with international recipes that use metric measurements
• Calculating fuel consumption and costs when traveling between countries
• Understanding product specifications from international manufacturers
• Converting vehicle fuel tank capacities and range calculations
• Shipping and importing liquids where different units are used
• Chemical mixing and laboratory work with international standards

For large volume measurements:

• Enter the value in liters (e.g., 10000 for 10,000 liters)
• For very large numbers, you can use decimal notation (e.g., 5e4 for 50,000)
• The converter will handle large values accurately with the selected precision
• Results for large volumes will be formatted with commas for readability

This makes the tool suitable for industrial applications, shipping calculations, and other scenarios involving large liquid volumes.