Gallons to Liters Converter
Instantly convert Gallons (gal) to Liters (L). Critical for Americans abroad, water and fuel calculations, and international chemical or brewing recipes.
Quick Reference
How to Convert Gallons to Liters
To convert Gallons to Liters, use this formula:
liters = gallons × 3.78541
Example: Converting 10 gal to Liters gives you 37.854 liters. Just enter your own value in the converter above for an instant result.
Gallons to Liters Conversion Table
Common Gallons to Liters values at a glance — use this as a quick lookup reference:
| Gallons (gal) | Liters (L) |
|---|---|
| 1 gal | 3.7854 L |
| 2 gal | 7.5708 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 15 gal | 56.7811 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.6352 L |
| 50 gal | 189.27 L |
| 100 gal | 378.54 L |
| 250 gal | 946.35 L |
| 500 gal | 1892.7 L |
When to Use Gallons to Liters Conversion
Critical for Americans abroad, water and fuel calculations, and international chemical or brewing recipes. Here are the most common scenarios where you will need this conversion:
About Gallons and Liters
One US gallon equals exactly 3.78541 liters. The gallon is an imperial unit used primarily in the United States for fuel, beverages, and larger volumes (UK uses a different imperial gallon of 4.546 liters). Converting US gallons to liters is essential when Americans travel abroad and need metric equivalents for fuel stations, fish tanks, pool volumes, or brewing recipes. It also applies to professional cooking, chemistry labs, and aquarium maintenance — all domains that benefit from metric precision.