Convert US Gallon to Liter
Use this free converter to change us gallons (gal) into liters (L). Us gallon and liter both measure volume. As a quick reference, 1 gal equals 3.7854118 L, and 1 L equals 0.26417205 gal.
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Liter (L)
3.7854118
1 gal = 3.7854118 L
Volume conversion table
| US Gallon | Liter |
|---|---|
| 0.01 | 0.037854118 |
| 0.1 | 0.37854118 |
| 0.5 | 1.8927059 |
| 1 | 3.7854118 |
| 2 | 7.5708236 |
| 3 | 11.356235 |
| 5 | 18.927059 |
| 10 | 37.854118 |
| 20 | 75.708236 |
| 25 | 94.635295 |
| 50 | 189.27059 |
| 100 | 378.54118 |
| 1,000 | 3785.4118 |
How to convert US Gallon to Liter
Multiply the us gallon value by 3.7854118 to get liters.
- Enter the number of us gallons you want to convert.
- The converter instantly shows the equivalent value in liters.
- Worked example: 15 gal × 3.7854118 = 56.781177 L.
- Use the swap button to reverse the conversion (liter to us gallon).
About these units
US Gallon (gal)
- Definition
- A US gallon (gal) is a unit of volume equal to 3.785411784 liters, or 128 US fluid ounces.
- History
- It is based on the old English wine gallon of 231 cubic inches, adopted by the United States.
- Current use
- US gallons measure fuel, milk, and paint in the United States.
Liter (L)
- Definition
- A liter (L) is a metric unit of volume equal to one cubic decimeter, or 1,000 cubic centimeters.
- History
- Introduced in France in 1795, the liter was tied to the kilogram via the volume of one kilogram of water.
- Current use
- Liters measure beverages, fuel, and engine displacement across the metric world.
Frequently asked questions
How many liters are in a us gallon?
There are 3.7854118 L in 1 gal. To convert, multiply the number of us gallons by 3.7854118.
How do I convert us gallons to liters?
Multiply the us gallon value by 3.7854118 to get liters. For example, 10 gal = 37.854118 L.
Is this us gallon-to-liter converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert US Gallon to other volume units
| Unit | 1 US Gallon equals |
|---|---|
| Liter (L) | 3.7854118 L |
| Milliliter (mL) | 3785.4118 mL |
| Cubic Meter (m³) | 0.0037854118 m³ |
| Cubic Centimeter (cm³) | 3785.4118 cm³ |
| Imperial Gallon (imp gal) | 0.83267418 imp gal |
| US Quart (qt) | 4 qt |
| US Pint (pt) | 8 pt |
| US Cup (cup) | 16 cup |
| US Fluid Ounce (fl oz) | 128 fl oz |
| Tablespoon (tbsp) | 256 tbsp |
| Teaspoon (tsp) | 768 tsp |