I usually allow one bottle to every three people.
5 or 6, depending on how you pour.
Typically, 750ML which is a little over 25 ounces.
4-6 glasses per bottle.
About 10. _ The first answer of 10 is good but, here is some information that may be helpful as well.. A suggestion when serving sparkling wine or Champagne for a toast is to only fill the glasses...
Depends on how much you pour in each one, but usually 4-6.