Convert Gallons to Liters
Convert Gallons to Liters instantly with the exact formula (1 gal = 3.785412 L), a quick table and the reverse conversion.
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How to use Gallons to Liters Converter
- 1
Open Gallons to Liters Converter on this page. It loads right in your browser.
- 2
Add your file, text or values and adjust the settings.
- 3
Copy the result or download it. Nothing is uploaded or stored.
About this tool
This converter turns Gallons into Liters as you type. One gallon equals 3.785412 L, so the result is exact, not rounded guesswork. It is handy for recipes, drinks, fuel, baby bottles and liquid medicines.
How to convert Gallons to Liters
Multiply the value in Gallons by 3.785412. To convert Gallons to Liters, use the formula below.
L = gal × 3.785412
Worked example
8 gal × 3.785412 = 30.2833 L
Quick mental estimate
For a rough figure in your head, multiply by about 3.8: 8 gal ≈ 30.4 L. Use the converter when you need the exact value.
Gallons to Liters table
| Gallons (gal) | Liters (L) |
|---|---|
| 1 | 3.7854 |
| 2 | 7.5708 |
| 4 | 15.1416 |
| 5 | 18.9271 |
| 8 | 30.2833 |
| 10 | 37.8541 |
| 12 | 45.4249 |
| 16 | 60.5666 |
| 20 | 75.7082 |
| 50 | 189.271 |
| 100 | 378.541 |
| 250 | 946.353 |
Quick reference
- 2 gal = 7.5708 L
- 5 gal = 18.9271 L
- 10 gal = 37.8541 L
- 16 gal = 60.5666 L
- 50 gal = 189.271 L
- 250 gal = 946.353 L
Where Gallons and Liters are used
Most countries measure liquids in liters and milliliters, but US recipes, drink sizes and fuel use cups, fluid ounces and gallons. Note that US and UK gallons and fluid ounces differ; this converter uses the US units.
Tips
- Use the swap button to convert Liters back to Gallons.
- Choose 0 to 6 decimals; the full-precision value is used internally.
- The side panel also shows the value in every other unit of the same type.
Why use this converter
It is free, needs no sign-up and runs entirely in your browser, so it keeps working even offline once the page is loaded. Need the opposite? Use the Liters to Gallons converter or the full unit converter.
Features
- Instant Gallons to Liters conversion as you type
- Exact factor: 1 gal = 3.785412 L
- Quick conversion table of common values
- Swap button for Liters to Gallons
- Choose 0 to 6 decimal places
- Works offline in your browser
Frequently asked questions
How many Liters are in one gallon?
One gallon equals 3.785412 L.
How do I convert Gallons to Liters?
Multiply the number of Gallons by 3.785412. For example, 8 gal = 30.2833 L.
What is 16 gal in Liters?
16 gal equals 60.5666 L.
Is the conversion exact?
Yes. The tool uses the internationally defined conversion factor and only rounds the displayed result to the decimals you choose.