How many liters are in one gallon (U.S.)?

One gallon (U.S.) is defined as approximately 3.785 liters. This conversion is well-established and commonly used for various purposes such as cooking, science, and industry. Understanding this relationship is important for tasks that require unit conversions between the imperial and metric systems, particularly in contexts where precise measurements are necessary.

The other values presented do not correspond to the U.S. gallon measurement. For instance, 4.546 liters is the conversion from the imperial gallon, used in the UK, while the other quantities (1.137 liters and 36.369 liters) do not relate to any standard gallon measurement and would not be relevant in this context.