Use our Gallons to Liters converter to quickly and accurately convert volume from U.S. gallons (gal) to liters (L). Enter a value in the calculator below to instantly find the equivalent volume in liters.
Convert Gallons to Liters
Enter a volume in U.S. gallons (gal) to instantly calculate the equivalent volume in liters (L).
Formula: L = US gal × 3.785411784
How to Convert Gallons to Liters
To convert U.S. gallons to liters, multiply the number of gallons by 3.785411784. One U.S. liquid gallon (gal) equals 3.785411784 liters (L).
Formula
L = US gal × 3.785411784
Example: Convert 5 U.S. gallons to liters.
5 × 3.785411784 = 18.92705892
5 gal ≈ 18.927059 L
Gallons to Liters Conversion Chart
| U.S. Gallons (gal) | Liters (L) |
|---|---|
| 1 | 3.785412 |
| 2 | 7.570824 |
| 3 | 11.356235 |
| 5 | 18.927059 |
| 10 | 37.854118 |
| 15 | 56.781177 |
| 20 | 75.708236 |
| 25 | 94.635295 |
| 50 | 189.270589 |
| 75 | 283.905884 |
| 100 | 378.541178 |
U.S. Gallons vs. Imperial Gallons
The U.S. liquid gallon and Imperial gallon are different units, so it is important to know which gallon measurement you are converting. One U.S. gallon equals 3.785411784 liters, while one Imperial gallon equals 4.54609 liters. This calculator converts U.S. liquid gallons to liters. Our Gallons to Liters converter uses the U.S. liquid gallon measurement for all calculations.
When to Convert Gallons to Liters
Converting gallons to liters is useful when comparing fuel quantities, aquarium capacities, water storage, beverage volumes, container sizes, automotive specifications, and other liquid measurements between U.S. customary and metric units. Gallons are commonly used for liquid volume in the United States, while liters are widely used internationally.
Frequently Asked Questions
How do you convert gallons to liters?
To convert accurately, our Gallons to Liters converter multiplies the number of U.S. gallons by 3.785411784.
How many liters are in 1 U.S. gallon?
One U.S. gallon equals 3.785411784 liters.
How many liters are in 5 gallons?
Five U.S. gallons equal approximately 18.927059 liters.
How many liters are in 10 gallons?
Ten U.S. gallons equal approximately 37.854118 liters.
Are U.S. gallons and Imperial gallons the same?
Are U.S. gallons and Imperial gallons the same?
When You Might Need to Convert Gallons to Liters
You might need to convert gallons to liters when comparing fuel quantities, water or beverage volumes, aquarium capacities, storage containers, automotive specifications, or product information from different countries. Because gallons are commonly used in the United States while liters are widely used internationally, an accurate gallons to liters conversion makes it easier to compare liquid volumes across different measurement systems.
About U.S. Gallons
IThe U.S. liquid gallon, abbreviated gal, is a unit of volume used primarily in the United States. One U.S. gallon contains exactly 231 cubic inches and is equivalent to 3.785411784 liters.
About Liters
The liter, abbreviated L, is a metric unit of volume widely used around the world. One liter is equal to one cubic decimeter and contains exactly 1,000 milliliters.
For additional information about metric measurement and SI units, visit the U.S. National Institute of Standards and Technology (NIST).
Understanding the difference between these volume measurement systems is especially useful when comparing products, fuel quantities, container capacities, or specifications from different countries. U.S. gallons are commonly used for liquid measurements in the United States, while liters are widely used throughout most of the world. Whether you are checking fuel capacity, measuring liquids, comparing product sizes, or working with international specifications, an accurate gallons to liters conversion helps ensure that you are using the correct volume measurement.
For fast and accurate results, use our Gallons to Liters converter whenever you need to compare liquid volumes between U.S. gallons (gal) and liters (L).
Convert Liters to Gallons
Need to convert the other way? Use our Liters to Gallons converter to quickly convert volume from liters (L) to U.S. gallons (gal).
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