Gallons to Liters Converter
Convert US gallons to liters instantly. Accurate gal to L calculator with formula and examples.
Common conversions
Result
— L
Conversion formula: multiply by 3.785411784 (gal → L)
Related conversions
Need another unit? Open the full Unit Converter for every category.
About US Gallon to Liter
Quick answer: 1 gal = 3.785412 L. Conversion formula: multiply by 3.785411784 (gal → L).
Why convert us gallon to liter?
Metric markets and scientific workflows require liters. Converting US gallons to liters keeps inventory, recipes, and compliance documents accurate.
How to use this converter:
1. Confirm the From unit is US Gallon (gal) and To is Liter (L).
2. Enter any number — the result updates instantly.
3. Edit either field for bidirectional conversion, adjust precision, or tap Swap.
4. Copy the result when you need it in a report, label, or spreadsheet.
Common use cases:
- Export product labeling
- Pool and tank volume estimates
- Laboratory solution preparation
Example conversions
| US Gallon | Liter |
|---|---|
| 0.5 gal | 1.892706 L |
| 1 gal | 3.785412 L |
| 2 gal | 7.570824 L |
| 5 gal | 18.927059 L |
| 10 gal | 37.854118 L |
| 100 gal | 378.541178 L |
Frequently Asked Questions
How do you convert US Gallon to Liter?
Multiply the us gallon value by the conversion factor. Formula: multiply by 3.785411784 (gal → L). Example: 1 gal = 3.785412 L.
How many liter are in 1 us gallon?
1 gal = 3.785411784 L.
Is this converter accurate enough for professional use?
Yes. Linear conversions use internationally defined exact factors (SI and customary). Temperature uses exact scale relationships. Always confirm critical safety, medical, or legal measurements against your governing standard or instrument calibration.
Does conversion happen in my browser?
Yes. Values are converted locally in your browser. No account is required and your numbers are not uploaded to a server.
Can I convert Liter back to US Gallon?
Yes — use the Swap control in the converter, or open the dedicated Liters to Gallons page.