How many ounces are contained in a gallon?

A gallon is a standard unit of measurement in both the U.S. customary and imperial systems. Specifically, in the U.S. system, one gallon is equal to 128 fluid ounces. This is essential knowledge for anyone in culinary arts and hospitality, as accurate measurements are crucial for food preparation, recipe development, and beverage service. When working with larger quantities or converting measurements, understanding that a gallon contains 128 ounces helps ensure consistency and precision in cooking and serving.

The other options reflect incorrect conversions or measurements and do not align with the established conversion rate between gallons and ounces.