If were talking about beer youve bottled assuming a 12 oz glass bottle the weight of each beer is 20 0z approximately. There are 128 oz per gallon. Stella Artois Lager 12 Pack Beer 11 2 Fl Oz Bottles Walmart Com Keeping this in consideration how much does 16oz of beer weigh. . This means that if you have a pack of 12 cans it will weigh about 6 ounces of aluminum. A 12-pack of beer weighs around 9-10 lbs however the exact weight varies depending on a variety of factors. Case of Beer Weight. Per gallon there are 128 ounces. As of September 2014 the weight of a case of beer containing 24 glass bottles weighing 12 ounces each is approximately 36 to 42 pounds. Approximately how many ounces does a 12-pack of beer weigh. 11 x 8 14 x 9 34 How much does a 12 pack of beer weigh. Approximate weight of a 24-pack of 12 oz canned beer. See answers 2 Best Answer. 46362 grams 46362. A 12 oz can of beer co...