Gallons to Liters Converter
About Gallons to Liters Converter
Gallons to Liters Conversion
Converting between gallons and liters is essential for fuel quantities, cooking, aquarium sizing, pool water volume, and many other liquid measurement needs. One US gallon equals 3.78541 liters. The UK gallon is larger at 4.54609 liters. This converter handles both US and UK gallons and provides instant bidirectional conversion.
The Conversion Formula
US Gallons to Liters: Multiply by 3.78541. Liters to US Gallons: Multiply by 0.264172. UK Gallons to Liters: Multiply by 4.54609. Quick estimate: multiply US gallons by 3.8 or divide liters by 3.8.
How to Use This Converter
Enter a value in gallons or liters, select US or UK gallon if needed, and click Convert.
Frequently Asked Questions
How many liters is 1 US gallon?
One US gallon equals 3.78541 liters. Quick estimate: about 3.8 liters.
What is the difference between US and UK gallons?
A US gallon is 3.785 liters. A UK (imperial) gallon is 4.546 liters. The UK gallon is about 20% larger than the US gallon.
How many gallons in a standard bathtub?
A standard bathtub holds about 40-60 US gallons (150-227 liters). A filled average bathtub uses approximately 50 gallons (189 liters) of water.
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