Most standard machines make 5 gallons (640 ounces). A typical serving (whether in a margarita glass or a plastic cup) is 8 oz; so, the machine will make approximately 80 servings. A dual machine will hold 2 flavors, and the bowls range from 3-5 gallons per side. Note: These estimates are for alcoholic beverages. If you use choose to use the mix to make slushies or other frozen drinks without alcohol, each batch will make approximately 60 servings.