Tool
Gallons to Liters Converter
Convert US gallons to liters for metric liquid volume.
Unit Converters
Try5 US gallons
What this tool does
Convert US liquid gallons to metric liters.
How to use
- Enter the volume in US gallons.
- View the liters result instantly.
- Use the reverse converter link for liters to gallons.
Formula
liters = US gallons × 3.785411784
Examples
5 US gallons
Input: 5
Output: 18.927059
5 × 3.785411784 ≈ 18.93 liters.
Learn more
US gallons to metric liters
One US liquid gallon equals approximately 3.78541 liters. Check whether your source uses US or imperial gallons before converting.
Common use cases
- Convert US fuel economy references to metric
- Translate recipe or chemical volumes
- Compare container sizes across standards
FAQ
Is this for US liquid gallons?
Yes. It uses the US liquid gallon definition of 3.785411784 liters.
How do I convert liters to gallons?
Use the Liters to Gallons converter.
Does this support fuel tank sizes?
Yes. Enter gallon capacity to get liters.
Source notes
- Conversion factor: 1 US liquid gallon = 3.785411784 liters.
Explore related workflows
Reverse conversion
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Last reviewed: 2026-05-23