gallons (US) to liters
1 US gal = 3.785412 L; 1 L = 0.264172 US gal. To convert US gallons to litres, multiply by 3.785411784.
Conversion formula
L = gal × 3.785411784
Conversion table
| 1 gallon | 3.785412 L |
|---|---|
| 5 gallon | 18.92706 L |
| 10 gallon | 37.85412 L |
| 25 gallon | 94.63529 L |
| 100 gallon | 378.5412 L |
Key facts
| 1 US gallon | 3.785411784 L |
|---|---|
| 1 litre | 0.264172 gal (US) |
| 1 imperial gallon | 4.54609 L |
| Formula | L = gal × 3.785411784 |
Frequently asked questions
How many liters is 1 US gallon?
1 US gallon equals 3.785411784 litres. Multiply the gallon value by 3.785411784.
Is a UK gallon different from a US gallon?
Yes. One imperial (UK) gallon is 4.54609 L, larger than the US gallon at 3.785412 L.
Reverse conversion
Printable A4 conversion cheat sheet — see the Downloads page