Quick Answer:
1 US gallon = 3.78541 liters. To convert US gallons to liters, multiply the gallon value by 3.78541.
Gallons and liters are the primary volume units for fuel, beverages, and cooking.
Detailed Overview: Gallons to Liters
A US liquid gallon is exactly 3.785411784 liters. An imperial gallon is 4.54609 liters. Multiply US gallons by 3.78541 for liters. Multiply imperial gallons by 4.54609. Multiply liters by 0.264172 for US gallons. Used in fuel pricing, beverage packaging, and cooking.
Conversion Reference Table
1 US gal = 3.7854 L, 5 US gal = 18.9271 L, 10 US gal = 37.8541 L, 15 US gal = 56.7812 L, 20 US gal = 75.7082 L, 50 US gal = 189.2706 L
Practical Calculation Example
Convert 12 US gallons: liters = 12 × 3.78541 = 45.42 L. Imperial: 12 × 4.54609 = 54.55 L
Key Takeaways
1 US gallon = 3.78541 liters. 1 imperial gallon = 4.54609 liters. Multiply gallons by the appropriate factor.
THE AUTORANK Editorial Note: Always confirm US or imperial gallons when converting fuel volumes, as the 20% difference affects range calculations.
Frequently Asked Questions
Q: How do I convert gallons to liters quickly?
A: Multiply the US gallon value by 3.8 for a fast estimate. Example: 10 gal × 3.8 = 38 L, close to the exact 37.85 L.
A: Multiply the US gallon value by 3.8 for a fast estimate. Example: 10 gal × 3.8 = 38 L, close to the exact 37.85 L.
Q: Is a US gallon the same as a UK gallon?
A: No. A US gallon is 3.785 liters, while a UK imperial gallon is 4.546 liters, about 20% larger.
A: No. A US gallon is 3.785 liters, while a UK imperial gallon is 4.546 liters, about 20% larger.
The gallon to liter factor of 3.78541 is essential for fuel and beverage conversions.
Related Converters: Liters to Gallons | Pints to Liters