How to convert US gallons to liters
One US gallon is exactly 3.785411784 liters. To turn gallons into liters, multiply by 3.785. If your gallons are UK (imperial) gallons, multiply by 4.546 instead.
Formula: liters = US gallons × 3.78541
Example: 5 gal × 3.785 = 18.93 liters
gal to L table
| US gallons (gal) | Liters (L) |
|---|---|
| 0.25 | 0.95 |
| 0.5 | 1.89 |
| 1 | 3.79 |
| 2 | 7.57 |
| 3 | 11.36 |
| 5 | 18.93 |
| 10 | 37.85 |
| 12 | 45.42 |
| 15 | 56.78 |
| 20 | 75.71 |
| 25 | 94.64 |
| 50 | 189.27 |
| 55 | 208.2 |
| 100 | 378.54 |
| 500 | 1,892.71 |
| 1,000 | 3,785.41 |
Values are rounded to 2 decimal places.
Gallons you meet every day
- A 5-gallon water jug holds 18.9 L
- A 15-gallon car tank holds 56.8 L
- A 55-gallon drum holds 208 L
- 1 gallon = 4 quarts = 8 pints = 16 cups (US)
How to use it
- Type a number in the From box — the answer appears straight away
- Click Swap (⇄) to convert the other way, from liters to US gallons
- Change the units or the category to convert anything else — length, weight, temperature, volume, speed and more
Frequently asked questions
How many liters is 1 gallon?
3.785 liters for a US gallon; 4.546 liters for a UK gallon.
How many liters is 5 gallons?
18.93 liters (US gallons).
Why are US and UK gallons different?
The US kept an older English wine gallon; Britain defined a new imperial gallon in 1824. Both kept the name.
Is my data sent anywhere?
No. The conversion runs in your browser, on your own device.
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- Unit Converter — every unit in one place
