Is this Gallon Calculator free to use?

Yes, Gallon Calculator is 100% free to use online with no installation or account required.

How do I use the Gallon Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Gallon Calculator — Free Online Tool

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Convert volume measurements between US gallons, Imperial gallons, liters, and quarts

Volume Standard: $1\text{ US liquid gallon} = 3.78541\text{ liters}$ ($L$). $1\text{ Imperial gallon} \approx 4.54609\text{ liters}$.

Volume Value & Unit Input

Volume Value

From Unit

⚠️ Always distinguish between US liquid gallons and UK Imperial gallons when converting fuel economy or liquid capacities.

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