Convert gallons to liters instantly. Enter a value below, or use the formula and reference table further down the page.
Try
How to convert gallons to liters
Multiply the value by 3.785411784.
L = gal × 3.785411784Example: 10 gal = 37.8541 L.
Gallons to Liters conversion table
| Gallons (gal) | Liters (L) |
|---|---|
| 1 gal | 3.7854 L |
| 2 gal | 7.5708 L |
| 3 gal | 11.3562 L |
| 4 gal | 15.1416 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 15 gal | 56.7812 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.6353 L |
| 50 gal | 189.2706 L |
| 100 gal | 378.5412 L |
Frequently asked questions
How many liters is 1 gallon?
1 gallon equals 3.7854 liters.
What is the formula to convert gal to L?
To convert gal to L, multiply the value by 3.785411784. The full formula is: L = gal × 3.785411784.
How do I convert liters back to gallons?
Use the same calculator above and type your value into the liters field instead — it converts in both directions. Or use the reverse formula: gal = L ÷ 3.785411784.
Is the gal to L conversion exact?
The conversion factor used here (3.785411784) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.