US gallons to Liters Converter
Convert US gallons to liters. The formula used here is 1 US gallon = 3.785411784 liters. The formula is L = gal × 3.785411784; 1 gal is 3.7854 L.
A US customary liquid volume equal to 3.785411784 liters.
A metric volume unit used for liquids and containers.
Start with your value in US gallons, then apply the formula below. It stays visible so you can catch rounding mistakes instead of just copying the output.
Check whether the source uses US customary, metric, or nutrition-label conventions before rounding liquid and cooking conversions.
Liquid and cooking measurements may be limited by the measuring cup, spoon, or container markings even when the conversion factor is more precise. This page displays converted values with up to 4 decimal places by default.
| US gallons | Liters |
|---|---|
| 0.25 gal | 0.9464 L |
| 1 gal | 3.7854 L |
| 5 gal | 18.9271 L |
| 10 gal | 37.8541 L |
Useful for kitchen and recipe measurements. Use the same formula with your exact input if the measurement needs to be documented.
Useful for liquid storage, tanks, and containers. Use the same formula with your exact input if the measurement needs to be documented.
Useful for construction, gardening, and material estimates. Use the same formula with your exact input if the measurement needs to be documented.
How do I convert US gallons to liters?
Enter the value in US gallons and apply L = gal × 3.785411784. Round the liters result after the conversion, not before.
What is 1 US gallon in liters?
1 gal equals 3.7854 L with the current rounding setting. Keep more decimal places when the result feeds another calculation.
What is 0.25 gal in L?
0.25 gal is 0.9464 L. It appears in the lookup table so you can compare it with nearby amounts.
Can I convert liters back to US gallons?
Yes. Use the reverse Liters to US gallons converter if you need to go the other direction.
How accurate is this US gallons to liters conversion?
The calculator runs the formula in your browser and rounds results to 4 decimal places by default. Liquid and cooking measurements may be limited by the measuring cup, spoon, or container markings even when the conversion factor is more precise.