What is the conversion factor for converting gallons to liters?

The conversion factor for converting gallons to liters is 1 gallon = 3.785 liters. This relationship is based on the definitions of the gallon and the liter, where the gallon is a unit of volume commonly used in the United States, while the liter is the standard metric unit of volume. Knowing this conversion factor is essential for water operators, especially when dealing with volume measurements in water treatment processes, where accurate conversions can impact calculations for dosages, flow rates, and system capacities. The other options reflect different measurements for other types of gallons, such as the imperial gallon used in some countries or simply inaccurate conversions. Therefore, understanding these units is crucial for effective communication and operation within the water industry.