Gallon to Liter Converter
To convert gallons to liters, multiply the number of gallons by 3.78541 (or use the formula: 1 Gallon = 3.78541 Liters).
Popular Conversions
How to Convert Gallons to Liters
- Take the value in gallons (gal).
- Apply the conversion relationship: 1 Gallon = 3.78541 Liters.
- The result is the equivalent value in liters (L).
Gallons to Liters Formula
1 Gallon = 3.78541 Liters
Standard conversion relationship between gallons (gal) and liters (L).
Gallons to Liters Conversion Example
1 × 3.78541 = 3.78541 L
Worked calculation showing 1 gallon converted to liters.
About Gallons and Liters
Volume measures three-dimensional capacity. Metric volume units have decimal relationships, while US customary and imperial liquid units can use different definitions. The gallon (gal) is a unit of volume. The liter (L) is a unit of volume.
Exact Conversion Relationship
1 Gallon = 3.78541 Liters
1 × 3.78541 = 3.78541 L
Gallons to Liters Conversion Table
Frequently Asked Questions
How many liters are in a US gallon?+
One US liquid gallon is equal to approximately 3.78541 liters.
Are my calculations logged?+
No. All conversions execute purely client-side in your browser.
Are US and imperial gallons the same size?+
No. An imperial gallon is larger than a US liquid gallon, so select the exact gallon unit required.
What is a gallon?+
The gallon (gal) is a unit of volume.
What is a liter?+
The liter (L) is a unit of volume.
What is the relationship between gallons and liters?+
1 Gallon = 3.78541 Liters. The reverse converter applies the corresponding inverse formula.
How do I convert gallons to liters?+
Apply the conversion formula shown above to the gallon value. For example, 1 × 3.78541 = 3.78541 L.
How precise are the conversion results?+
The calculator uses JavaScript floating-point arithmetic and displays a practical rounded result. Keep extra digits during intermediate calculations and round only the final value to the precision your work requires.