Average size drinking glass in household?

The average size of a drinking glass in a household is typically between 8 to 12 fluid ounces (237 to 355 milliliters). However, the size may vary depending on the specific purpose or culture. For example, standard drinking glasses used for water or juice may have a capacity of around 8 ounces, while glasses specifically designed for beverages like wine or cocktails may be larger, with a capacity of 12 ounces or more. Some households may also have larger drinking glasses, called tumblers or water goblets, which can hold up to 16 ounces or more.