Wine Pours refer to the average amount of glasses, or pours, or wine are present within a standard bottle of wine. The general pour is roughly five ounces, and roughly five glasses to every 750 ml wine bottle.
Wine Pours are not a set science as everyone has different personal serving amounts. For example, restaurants will on average pour six ounces of wine into the glass of a customer instead. With the different ranges however, the staple amount is five ounces for every pour into a glass, and five glasses per bottle.