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Gallons to Liters Converter
Convert gallons to liters instantly and accurately. 1 gal = 3.7854 L. Type any value below β the result updates as you type.
How to use this tool
- 1Enter the value in gallons.
- 2Read the converted result in liters instantly.
- 3Use the swap button to reverse the conversion, or pick any other unit.
Frequently asked questions
How do you convert gallons to liters?+
1 gal = 3.7854 L. To convert, multiply the number of gallons by the conversion factor between gal and L. This calculator does it automatically as you type.
Is this gallons to liters converter accurate?+
Yes. It uses exact SI/standard conversion factors, so results match official volume definitions to full precision.
Is it free and private?+
Completely free with no sign-up. All conversion happens in your browser β nothing is uploaded to a server.
Learn more
- Gallons vs Liters: what's the difference?
- Gallons to Liters conversion table
- How many liters are in a gallon?