How do I convert liters back to US gallons?

Use the reverse converter: 1 liter equals 0.264172 gal.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert US gallons to liters, multiply the value by 3.78541178.

L = gal × 3.78541178

40 gal × 3.78541178 = 151.42 L

US Gallon (gal): Used for fuel and liquids in the United States. Exactly 3.785411784 litres (231 cubic inches).
Liter (L): The common metric unit for liquids such as drinks and fuel. Equal to one cubic decimetre, accepted for use with the SI.

How do I convert US gallons to liters?: To convert US gallons to liters, multiply the value by 3.78541178.
How many liters are in 1 US gallon?: 1 US gallon equals 3.78541 L.
How many liters are in 10 US gallons?: 10 gal equals 37.8541 L.
How do I convert liters back to US gallons?: Use the reverse converter: 1 liter equals 0.264172 gal.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.