Convert Gallons to Liters (gal to L)
Whether you're measuring fuel, cooking ingredients, or home brewing supplies, converting between US gallons and metric liters is a common task. Use our free calculator to instantly get the exact liquid volume conversion.
The Conversion Formula
The standard conversion is simple: Liters = Gallons × 3.78541. Keep in mind that this calculator uses the US fluid gallon standard, which is most common in North America.
Frequently Asked Questions
There are approximately 3.78541 liters in one US liquid gallon.
To convert US gallons to liters, multiply the volume in gallons by 3.78541. For example, 5 gallons equals about 18.9 liters.
No, a UK (imperial) gallon is larger than a US gallon. One imperial gallon equals about 4.54609 liters.