Gallons to Liters Converter
American fuel and liquid volumes.
Gallons to Liters Converter
Convert between any two volume & capacity units instantly.
Liter (L)
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What This Calculator Does
The Gallons to Liters Converter translates US gallons into metric liters, which is the standard for fuel, beverages, and pool chemical dosing in most countries. If a recipe calls for liters of broth or a gas tank holds 15 gallons, converting between these units makes real-world comparisons straightforward.
How It Works
One US gallon equals approximately 3.78541 liters. Multiply the number of gallons by this factor to get liters. Note that imperial (UK) gallons are larger at about 4.546 liters.
Example
A standard gas tank is about 15 gallons or 56.8 liters. A gallon of milk is 3.79 liters. A 5-gallon bucket holds 18.9 liters.
Formula
liters = gallons x 3.785411 US gallon = 3.78541 liters.
Reading the Results
Volume in Liters
Your volume expressed in liters using the exact US gallon conversion factor.
Frequently Asked Questions
How many liters is 1 gallon?
One US gallon equals approximately 3.79 liters. An imperial (UK) gallon is about 4.55 liters.
How do I convert liters to gallons?
Divide liters by 3.78541. A 20-liter container holds about 5.28 US gallons.
Is a gallon of water a day good?
Most health guidelines suggest about 2-3 liters of total fluid per day. A gallon of water (3.79 L) is near the upper end for many people.