Instantly convert US gallons (gal) to liters (L). Bidirectional, accurate, and free.
To convert US gallons to liters, use the formula liters = US gallons × 3.7854. For example, 2 US gallons equals 7.5708 liters. Type any number into the calculator above and the result appears instantly — you can also type into the liters box to convert the other way.
| US gallons | Liters |
|---|---|
| 1 gal | 3.7854 L |
| 2 gal | 7.5708 L |
| 3 gal | 11.3562 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
| 20 gal | 75.7082 L |
| 50 gal | 189.27 L |
| 100 gal | 378.54 L |
There are 3.7854 liters in one US gallon. To convert any value, apply the formula liters = US gallons × 3.7854.
The formula is liters = US gallons × 3.7854. Enter a value above and the result updates instantly in both directions.
Yes. It uses the exact internationally-defined conversion factor, so results match official standards to several decimal places.
Yes — the converter is bidirectional. Type in either box and the other updates automatically using the inverse formula.