30 ounces equals how many cups?

16 imperial oz is equal to 454.609 ml so it is :1.8184 Europe cups (250ml), 1.8942 us cups (220ml), 2.273 Japan cups (200ml)16 us oz is equal to 473.1765ml, so it is: 1.8927 Europe cups(250ml), 1.9716 us cups (220ml), 2.273 japan cups (200ml)approximately 16oz is almost 2 cups (unless you are in japan)