Gallon US (gal) to Liter (L)
1 gal = 3.78541 L · Free instant converter, no signup required.
What is a Gallon?
The US gallon is a unit of volume used in the United States. It equals 4 quarts, 8 pints, or 128 fluid ounces. Note that the US gallon differs from the UK (imperial) gallon.
What is a Liter?
The liter (L) is the standard unit of volume in the metric system, used worldwide for liquids including fuel, beverages, and cooking.
Quick Tip
1 US gallon ≈ 3.8 liters. A useful shortcut: multiply gallons by 4, then subtract 5% for a quick estimate.
Common Uses
- →Fuel economy conversion (mpg vs L/100km)
- →Understanding US fuel prices when traveling
- →Large beverage container comparisons
- →Pool and tank volume calculations
Did You Know?
A US gallon is about 20% smaller than a UK (imperial) gallon — always check which gallon is being used!
How to convert Gallon US (gal) to Liter (L)
To convert from Gallon US (gal) (gal) to Liter (L) (L), multiply your value by 3.78541.
For example, 10 gal = 37.8541 L.
// Gallon US (gal) to Liter (L) conversion table
| Gallon US (gal) | Liter (L) |
|---|---|
| 1 gal | 3.78541 L |
| 2 gal | 7.57082 L |
| 5 gal | 18.92705 L |
| 10 gal | 37.8541 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.63525 L |
| 50 gal | 189.2705 L |
| 100 gal | 378.541 L |
| 250 gal | 946.3525 L |
| 500 gal | 1,892.705 L |
| 1000 gal | 3,785.41 L |
// Related volume conversions