Gallons to Liters Converter
Convert US gallons to liters and liters to gallons instantly. Accurate volume conversion with a reference table.
Gallons to Liters Conversion
One US liquid gallon equals exactly 3.78541 liters. This conversion is used daily for fuel economy, cooking, and fluid measurements across industries.
Quick reference:
- 1 gal = 3.785 L
- 5 gal = 18.93 L
- 10 gal = 37.85 L
- 55 gal (drum) = 208.2 L
US vs Imperial Gallon
Note there are two types of gallons: the US gallon (3.78541 L) and the UK/Imperial gallon (4.54609 L). This converter uses the US gallon. If you are working with UK measures, multiply by 4.54609 instead.
Practical Uses
Gallon-to-liter conversion is essential when traveling between the US and metric-system countries, comparing fuel prices, reading recipes from American sources, and purchasing aquariums or water tanks sold in gallons.
Frequently Asked Questions
How many liters are in a gallon?
One US liquid gallon equals 3.78541 liters.
How do I convert liters to gallons?
Divide the number of liters by 3.78541. For example, 10 liters ÷ 3.78541 ≈ 2.64 gallons.
Is a UK gallon the same as a US gallon?
No. A UK (Imperial) gallon is 4.54609 liters, about 20% larger than the US gallon of 3.78541 liters.
Gallons to Liters Conversion Chart
Quick reference for US gallon to liter conversions. 1 US gallon = 3.78541 liters.
| Gallons (US) | Liters |
|---|---|
| 0.5 | 1.89 |
| 1 | 3.785 |
| 2 | 7.571 |
| 3 | 11.356 |
| 4 | 15.142 |
| 5 | 18.927 |
| 6 | 22.712 |
| 7 | 26.498 |
| 8 | 30.283 |
| 9 | 34.069 |
| 10 | 37.854 |
| 15 | 56.781 |
| 20 | 75.708 |
| 25 | 94.635 |
| 50 | 189.271 |