Gallons to Liters Converter
Convert gallons to liters.
Result
0
Liters
1 Gallons (US) = 3.78541 Liters
How to convert Gallons (US) to Liters?
US gallons are commonly used for fuel and liquid measurements. The relationship is:
- 1 Gallon (US) = 3.78541 Liters
- 1 Liter ≈ 0.264172 Gallons (US)
To convert Gallons (US) to Liters, multiply the value by 3.78541.
Formula: Liters = Gallons (US) × 3.78541
Step-by-Step Calculation
- Take the number of Gallons (US) you want to convert (e.g., 5).
- Multiply that value by 3.78541.
- The result is the value in Liters. (Example: 5 × 3.78541 = 18.92705 Liters).
How to use this converter?
Enter US gallons and get liters instantly—useful for fuel, beverages, and liquid container sizes.
Common Gallons to Liters Conversions
Quick reference guide for popular volumes.
1 Gallon = 3.78541 Liters
2 Gallons = 7.57082 Liters
3 Gallons = 11.3562 Liters
5 Gallons = 18.9271 Liters
10 Gallons = 37.8541 Liters
0.5 Gallon = 1.89271 Liters
0.25 Gallon = 0.946353 Liters
15 Gallons = 56.7812 Liters
20 Gallons = 75.7082 Liters
30 Gallons = 113.562 Liters
History: US gallon vs imperial gallon
There are different gallon standards. This converter uses the US liquid gallon, which is smaller than the UK/imperial gallon. Always confirm which gallon unit is being used in your context.
Common Gallons to Liters Conversions
| Gallons (US) Input | Liters Result |
|---|---|
| 0.25 Gallon | 0.946353 Liters |
| 0.5 Gallon | 1.89271 Liters |
| 1 Gallon | 3.78541 Liters |
| 2 Gallons | 7.57082 Liters |
| 3 Gallons | 11.3562 Liters |
| 5 Gallons | 18.9271 Liters |
| 10 Gallons | 37.8541 Liters |
| 15 Gallons | 56.7812 Liters |
| 20 Gallons | 75.7082 Liters |
| 30 Gallons | 113.562 Liters |
Frequently Asked Questions
How do I convert gallons to liters?
Multiply US gallons by 3.78541 to get liters.
How many liters is 1 US gallon?
1 US gallon equals 3.78541 liters.
How many liters is 5 gallons?
5 US gallons equals 18.92705 liters.
Is this for US gallons or UK gallons?
This converter uses US liquid gallons. UK/imperial gallons are larger and use a different factor.
How many gallons are in 1 liter?
1 liter is about 0.264172 US gallons.