Volume Converter
Gallons to Liters
Convert US gallons to liters below — useful for fuel, aquariums and shipping liquids abroad.
Convert gallons to liters
0.264172
1 L = 0.264172 gal
| Unit | 1 L = |
|---|---|
| Milliliters | 1,000 mL |
| Liters | 1 L |
| Cubic meters | 0.001 m³ |
| US fluid ounces | 33.814 fl oz |
| US cups | 4.2268 cup |
| US pints | 2.1134 pt |
| US quarts | 1.0567 qt |
| US gallons | 0.264172 gal |
| Imperial gallons | 0.219969 gal (UK) |
How to convert gallons to liters
One US gallon equals about 3.78541 liters, so multiply gallons by 3.785 to get liters.
Example: a 20-gallon tank holds 20 × 3.785 = 75.7 liters.
US gallons to liters table
| US gallons | Liters |
|---|---|
| 1 gal | 3.79 L |
| 2 gal | 7.57 L |
| 5 gal | 18.93 L |
| 10 gal | 37.85 L |
| 15 gal | 56.78 L |
| 20 gal | 75.71 L |
Common US gallon volumes in liters.
Frequently asked questions
How many liters is 1 gallon?
One US gallon is about 3.785 liters. Multiply gallons by 3.785 to convert to liters.
What is 5 gallons in liters?
5 US gallons equals 5 × 3.78541 = 18.93 liters.