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Focused Unit Conversion
Gallons to Liters Converter
Convert US gallons to liters instantly with the gallons to liters formula, conversion chart, examples, and calculator. This focused page is built for one high-intent conversion, with the formula, examples, chart, and links back to the full converter.
US Gallons to Liters calculator
1 US gallon is equal to 3.78541 liters.
gal to L formula
liters = gallons x 3.785411784.
\[\text{liters} = \text{gallons} \times 3.785411784\]
1 US gallon is equal to 3.78541 liters.
Conversion chart
| US Gallons | Liters |
|---|---|
| 1 gal | 3.78541 L |
| 2 gal | 7.57082 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 20 gal | 75.7082 L |
| 100 gal | 378.541 L |
Related tools
When to use this focused converter
Use this page when you need a direct answer for gal to L. If you need a different pair or want to compare related units, open the Volume Converter.
For broader measurement work, the Unit Converters hub groups length, volume, temperature, pressure, speed, area, weight, energy, and data tools.
Gallons to Liters Converter FAQ
How do I convert us gallons to liters?
Use the formula liters = gallons x 3.785411784. Enter a value above and the calculator applies the conversion automatically.
Why does the result have decimals?
Many unit conversions use constants that create decimal results. Round to the number of digits your project requires.
Is this better than the full converter?
This page is faster for one common conversion. The full Volume Converter is better when you need a different unit pair.
Can I use this on mobile?
Yes. The calculator uses large inputs and responsive cards for phones, tablets, and desktop screens.