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Last updated on July 10th, 2025

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Liter to Gallon Conversion

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We often measure liquid volume using units like liters, gallons, milliliters, or cups. Different units are used in different regions or for different purposes. A liter is a metric unit of volume commonly used around the world, while a gallon is often used in the United States for measuring larger volumes of liquid. Sometimes, we need to convert liters to gallons to make it easier to understand quantities, especially when traveling or working with international recipes. In this topic, we will learn how to convert liters to gallons.

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What is a Liter?

A liter is a unit of volume in the metric system, widely used around the world for measuring liquid quantities. The metric system is based on powers of 10, simplifying unit conversions. 1 liter is equal to 1,000 milliliters (1 L = 1,000 mL). The symbol for liter is L, and it is commonly seen on beverage bottles and other liquid containers.

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What is a Gallon?

A gallon is a unit of volume used for measuring larger quantities of liquid, especially in the United States. There are two main types of gallons: the US gallon and the UK gallon. The US gallon is equal to 3.785 liters, while the UK gallon is equal to 4.546 liters. The symbol for gallon is gal.

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Liter to Gallon Formula

To convert liters to gallons, we use the following formulas: 1 US gallon = 3.785 liters 1 UK gallon = 4.546 liters So, to convert from liters to US gallons, you divide the number of liters by 3.785. Conversely, to convert from liters to UK gallons, you divide the number of liters by 4.546.

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How to Convert Liters to Gallons?

Converting liters (L) to gallons (gal) is straightforward using a standard conversion factor. Since 1 US gallon is equal to 3.785 liters, and 1 UK gallon is equal to 4.546 liters, you can convert liters to gallons by dividing the number of liters by the appropriate conversion factor. Steps to convert liters to gallons: Write down the volume in liters. Divide the value by 3.785 to get the volume in US gallons or by 4.546 for UK gallons.

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Liter to Gallon Conversion Chart

When we measure liquid volumes, sometimes we use liters (L) and sometimes we use gallons (gal). We use simple conversions to understand how much something in liters is in gallons. Below is a chart that shows us the liter-to-gallon conversions.

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Common Mistakes and How to Avoid Them in Liter to Gallon Conversion

When converting liters to gallons, people often make mistakes. Here are some common mistakes to help you better understand the concepts of conversions.

Mistake 1

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Using the wrong conversion factor

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People sometimes use incorrect values for conversion, such as using 3.8 instead of 3.785 for US gallons.

Mistake 2

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Rounding too soon

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People might round numbers too early while calculating, which can lead to inaccurate results. For example, instead of writing 10 ÷ 3.785 = 2.64, they might round it to 2.7, which is not precise.

Mistake 3

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Misplacing decimal points

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People sometimes place the decimal point incorrectly, which leads to improper values. For example, writing the conversion of 5 liters as 1.321 gallons instead of 1.32 gallons.

Mistake 4

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Incorrect use of formula

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People might get confused and use the incorrect formula. For example, instead of dividing, they multiply. To convert any value from liters to gallons, you divide liters by 3.785 for US gallons or by 4.546 for UK gallons, not multiply.

Mistake 5

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Confusing US and UK gallons

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People often mix up US and UK gallons, leading to incorrect conversions. Remember, 1 US gallon is 3.785 liters, while 1 UK gallon is 4.546 liters.

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Liters to Gallons Conversion Examples

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Problem 1

Convert 50 liters to US gallons

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50 liters = 13.21 US gallons

Explanation

We know the conversion factor: 1 liter = 0.2642 US gallons Now, multiply 50 by the conversion factor: 50 × 0.2642 = 13.21 gallons.

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Problem 2

Convert 100 liters to UK gallons.

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Solution: Converting 100 liters to UK gallons gives us 21.997 UK gallons.

Explanation

Use the conversion factor: 1 liter = 0.21997 UK gallons 100 × 0.21997 = 21.997 UK gallons

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Problem 3

A tank holds 200 liters of water. What is the volume in US gallons?

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The volume of water in the tank is 52.83 US gallons.

Explanation

Convert 200 liters to US gallons: 200 liters = 200 × 0.2642 = 52.83 gallons

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Problem 4

The aquarium has a capacity of 300 liters. What is its capacity in UK gallons?

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The capacity in UK gallons is 65.97 gallons.

Explanation

Convert 300 liters to UK gallons: 300 liters = 300 × 0.21997 = 65.97 gallons

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Problem 5

Converting 75 liters to US gallons

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75 liters = 19.81 US gallons

Explanation

Step 1: Use the conversion factor. 1 liter = 0.2642 US gallons Step 2: Multiply 75 by 0.2642. 75 × 0.2642 = 19.81 gallons

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FAQs on Liters to Gallons

1.How many US gallons is 1 liter?

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2.What is 5 liters in UK gallons?

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3.Is 10 liters a large volume?

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4.How do I convert 25 liters to US gallons?

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Important Glossaries for Liter to Gallon Conversion

Conversion: The process of changing one unit of measurement into another, such as converting liters to gallons. Volume: The amount of space an object or substance occupies, often measured in liters or gallons. Metric System: A system of measurement based on powers of ten, used globally, which includes units like liters. US Gallon: A unit of volume equal to 3.785 liters, commonly used in the United States. UK Gallon: A unit of volume equal to 4.546 liters, used in the United Kingdom.

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Seyed Ali Fathima S

About the Author

Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.

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Fun Fact

: She has songs for each table which helps her to remember the tables

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