Convert Gallons (US) to Liters
Instantly convert Gallons (US) (gal) to Liters (L) with our free online calculator.
Formula: gal to L — multiply by 3.78541
Reference Table
| Gallons (US) (gal) | Liters (L) |
|---|---|
| 1 | 3.78541 |
| 5 | 18.9271 |
| 10 | 37.8541 |
| 25 | 94.6352 |
| 50 | 189.27 |
| 100 | 378.541 |
How to Convert Gallons (US) to Liters
Formula
To convert Gallons (US) (gal) to Liters (L): multiply by 3.78541
Step-by-Step
- Start with your value in Gallons (US) (gal).
- Multiply by 3.78541 to perform the conversion.
- The result is your value expressed in Liters (L).
Conversion Factor
1 gal = 3.78541 L
Reverse Factor
1 L = 0.264172 gal
Worked Example
Convert 25 Gallons (US) to Liters: 25 gal = 94.6352 L
About Gallon (US) (gal)
A US customary unit of volume equal to exactly 3.785411784 liters, or 128 fluid ounces. US gallons are the default unit for US gasoline pricing and fuel economy (miles per gallon), milk and beverage containers, water heaters, and pool/aquarium capacity. Different from the Imperial gallon used in the UK (4.546 L) — a frequent source of confusion when comparing US vs. UK fuel economy or trans-Atlantic recipes. One US gallon weighs about 8.34 pounds.
About Liter (L)
A metric unit of volume equal to exactly 0.001 cubic meters (one cubic decimeter). Though technically not an SI unit, liters are accepted for use with SI and are the global standard for beverages, fuel consumption, car engine displacement, blood volume in medicine, and chemistry solutions. A standard wine bottle is 0.75 L, a soda can is 0.33 L, and a mid-size car's fuel tank holds 50–70 L. One liter of pure water at 4°C weighs almost exactly one kilogram — a design feature of the metric system.
Quick Facts
- 1 Gallon (US) equals 3.78541 Liters
- 1 Liter equals 0.264172 Gallons (US)
- Gallon (US) is a unit of volume
- Liter is a unit of volume
- This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
- The Gallon (US) belongs to the imperial system
- The Liter belongs to the metric system
Common Gallon (US) to Liter Conversions
| Gallons (US) (gal) | Liters (L) |
|---|---|
| 0.01 | 0.0378541 |
| 0.1 | 0.378541 |
| 0.25 | 0.946353 |
| 0.5 | 1.89271 |
| 1 | 3.78541 |
| 2 | 7.57082 |
| 3 | 11.3562 |
| 5 | 18.9271 |
| 10 | 37.8541 |
| 15 | 56.7812 |
| 20 | 75.7082 |
| 25 | 94.6352 |
| 50 | 189.27 |
| 75 | 283.906 |
| 100 | 378.541 |
| 250 | 946.353 |
| 500 | 1892.71 |
| 1000 | 3785.41 |
| 5000 | 18927 |
| 10000 | 37854.1 |
Understanding Gallons (US)
The Gallon (US) (symbol: gal) is a unit of volume. A US customary unit of volume equal to exactly 3.785411784 liters, or 128 fluid ounces. US gallons are the default unit for US gasoline pricing and fuel economy (miles per gallon), milk and beverage containers, water heaters, and pool/aquarium capacity. Different from the Imperial gallon used in the UK (4.546 L) — a frequent source of confusion when comparing US vs. UK fuel economy or trans-Atlantic recipes. One US gallon weighs about 8.34 pounds.
It belongs to the imperial measurement system.
Gallons (US) are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Understanding Liters
The Liter (symbol: L) is a unit of volume. A metric unit of volume equal to exactly 0.001 cubic meters (one cubic decimeter). Though technically not an SI unit, liters are accepted for use with SI and are the global standard for beverages, fuel consumption, car engine displacement, blood volume in medicine, and chemistry solutions. A standard wine bottle is 0.75 L, a soda can is 0.33 L, and a mid-size car's fuel tank holds 50–70 L. One liter of pure water at 4°C weighs almost exactly one kilogram — a design feature of the metric system.
It belongs to the metric measurement system.
Liters are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.
Why Convert Gallons (US) to Liters?
Volume conversions between Gallons (US) and Liters are essential in cooking, chemistry, and fluid mechanics. Recipes from different countries use different measurement systems, laboratory procedures reference varying units, and engineers designing fluid systems need precise volume calculations for pipes, tanks, and pumps.
Frequently Asked Questions
How do I convert Gallons (US) to Liters?
A US customary unit of volume equal to exactly 3. To convert Gallons (US) to Liters, multiply by 3.78541. For example, 25 gal equals 94.6352 L.
How many Liters are in 1 Gallon (US)?
There are 3.78541 Liters in 1 Gallon (US).
How many Gallons (US) are in 1 Liter?
There are 0.264172 Gallons (US) in 1 Liter.
What is the formula for Gallon (US) to Liter conversion?
The formula is: multiply by 3.78541. This means 1 gal = 3.78541 L.
Is a Gallon (US) bigger than a Liter?
No. One Gallon (US) is smaller than one Liter because 1 gal equals 3.78541 L, which is greater than 1.
When do you need to convert between Gallons (US) and Liters?
A metric unit of volume equal to exactly 0. Gallon (US) and Liter are both volume units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.