US Gallons to Liters
1 US Gallon = 3.7854 Liters
Common amounts:
About the us gallon to liter conversion
The us gallon (gal (US)) and the liter (L) are both units of volume. Convert between volume units — milliliters, liters, US and UK gallons, quarts, pints, cups and fluid ounces.
To convert us gallons to liters, multiply by 3.7854. To go back, multiply liters by 0.26417.
Reference table
| US Gallons | Liters |
|---|---|
| 1 gal (US) | 3.7854 L |
| 5 gal (US) | 18.9271 L |
| 10 gal (US) | 37.8541 L |
| 25 gal (US) | 94.6353 L |
| 50 gal (US) | 189.2706 L |
| 100 gal (US) | 378.5412 L |
Need the reverse conversion? Convert Liters to US Gallons.
Convert US Gallon to other volume units
Frequently asked questions
- How many liters is 1 us gallon?
- 1 US Gallon equals 3.7854 Liters. To go the other way, 1 Liter equals 0.26417 US Gallons.
- What's the formula to convert us gallons to liters?
- Multiply the number of us gallons by 3.7854 to get liters. For example, 10 us gallons × 3.7854 = 37.8541 liters.
- Does this converter handle decimals and very large numbers?
- Yes. Type any real number, including decimals or values in the trillions. Math runs entirely in your browser — no server round-trip, no sign-up, and nothing to install.