Gallons (US) to Liters
Enter a value in Gallons (US) and get the result in Liters instantly.
1 gal = 3.7854 L
How to convert Gallons (US) to Liters
Multiply the number of Gallons (US) by 3.7854 to get Liters. To go the other way, divide by that same number instead.
Need the opposite direction? Use the Liters to Gallons (US) converter.
Gallons (US) to Liters conversion table
| Gallons (US) | Liters |
|---|---|
| 1 gal | 3.7854 L |
| 2 gal | 7.5708 L |
| 3 gal | 11.3562 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 20 gal | 75.7082 L |
| 50 gal | 189.2706 L |
| 100 gal | 378.5412 L |
US and imperial gallons are not the same
This converter uses US liquid measures: 1 US gallon is 3.785 liters, while the imperial (UK) gallon is 4.546 liters — about 20% larger. US cups, pints and quarts are likewise smaller than their imperial counterparts, which matters when following recipes from another country.
Common questions
How many liters are in 1 gal?
One gal equals 3.7854 L. Multiply any number of gallons (us) by 3.7854 to get the same amount in liters.
How do I convert gallons (us) to liters quickly?
For a rough figure in your head, round 3.7854 to the nearest easy number and adjust. Use the converter above when the exact value matters.
Is this conversion exact?
The ratio between gallons (us) and liters is a fixed, defined value, so the conversion is exact. Results are rounded for display only.