One standard 750-milliliter bottle of champagne pours approximately six 4-ounce glasses of champagne. Champagne is also regularly is sold in magnum-sized bottles, which are 1.5 liters, allowing for approximately 12 glasses of wine per bottle.
The number of people that a bottle of champagne serves depends on how large each glass is and how many servings each person consumes. A champagne toast may require just one serving per person, while serving champagne with a meal may require two or more servings per person. Champagne pairs well with a variety of foods, including cheeses, shellfish, oysters, duck and desserts that are not overly sweet.