Convert US gallons to liters
Enter any value to calculate the result instantly.
US gallons to liters formula
Multiply US liquid gallons by exactly 3.785411784 to obtain liters.
Conversion table
Use these reference values for a quick comparison. The calculator above accepts positive, negative, decimal, and large values when they are meaningful for the quantity.
| US gallons | liters |
|---|---|
| 1 US gal | 3.78541178 L |
| 2 US gal | 7.57082357 L |
| 5 US gal | 18.92705892 L |
| 10 US gal | 37.85411784 L |
| 20 US gal | 75.70823568 L |
| 50 US gal | 189.2705892 L |
How to use this converter
Enter the source measurement in the first field. CalUnit applies the displayed formula and updates the destination value immediately. You can use decimals and negative values, copy the result into your work, and compare it with the reference table. Keep the original unit beside the starting measurement so another reader can verify the calculation. For a different unit pair, open the complete cooking conversion guide or the multi-unit cooking converter.
When this conversion is useful
Do not use this factor for imperial gallons, which equal about 4.54609 liters. US dry gallons are also a separate, less common unit.
Accuracy and rounding
The factor is exact for US liquid gallons. Measured tank and container volumes may be nominal rather than calibrated capacities.
Standards references
CalUnit checks physical unit relationships against authoritative measurement references. See the NIST Guide to the SI conversion factors and the BIPM SI Brochure. Regional cooking measures and digital storage conventions are identified separately because their names can represent more than one definition.