A common unit of measurement for Crown Royal Regal Apple whisky is one-fifth of a gallon, frequently abbreviated. This quantity, equivalent to 750 milliliters, is a popular size for liquor bottles and is widely available in retail settings. For instance, an individual might purchase this specific size of the flavored whisky for personal consumption or to share during a social gathering.
The availability of this size allows for convenient stocking and portability. Its prevalence in the market reflects consumer demand for a moderate quantity of the product. Historically, liquor has been sold in fractional gallon sizes, and this measurement represents a modern adaptation of that practice, aligning with standardized metric volumes for ease of international trade and consumption.