A standard case of wine typically contains 12 bottles, each holding 750 milliliters, which totals 9 liters of wine per case. This is the most common packaging size in the United States and many other markets

. There are exceptions based on bottle size and wine type:

• Magnum bottles (1.5 liters) come 6 bottles per case, also totaling 9 liters

• High-end wines or champagne are often sold in cases of 6 bottles.
• Smaller bottles like half bottles (375 ml) or splits (187 ml) may have different case quantities, sometimes 12 or 6 bottles per case depending on the producer

In summary, for standard 750 ml bottles, expect 12 bottles in a case. For magnums, expect 6 bottles per case. Other bottle sizes vary accordingly.