Gallons to Liters Converter
Convert US gallons to liters instantly. Perfect for cooking, fuel, pool volume, and recipes. Includes chart and formula.
Formula
liters = gallons × 3.78541
1 gallon × 3.78541 = 3.7854 liters
About Gallons to Liters Conversion
The US gallon is a unit of volume equal to 128 fluid ounces or approximately 3.785 liters. It is the standard volume measurement in the United States for fuel, milk, and other liquids. The liter (L) is a metric unit of volume used in most other countries. Note that the US gallon differs from the Imperial (UK) gallon, which is about 4.546 liters.
This conversion is essential when comparing fuel economy between US and international vehicles (MPG vs. L/100km), scaling recipes between American and international cookbooks, understanding liquid product sizes when shopping abroad, or calculating pool and aquarium volumes. One US gallon is roughly the size of a large milk jug.
Gallons to Liters Conversion Table
| Gallons | Liters | Context |
|---|---|---|
| 0.5 gal | 1.89 L | Half gallon |
| 1 gal | 3.79 L | Milk jug |
| 2 gal | 7.57 L | Water cooler |
| 5 gal | 18.93 L | Water bottle |
| 10 gal | 37.85 L | Small aquarium |
| 15 gal | 56.78 L | Car fuel tank |
| 20 gal | 75.71 L | Large fuel tank |
| 50 gal | 189.27 L | Water heater |
| 100 gal | 378.54 L | Hot tub |
| 500 gal | 1892.71 L | Small pool |