Why are standard drinking cups shaped the way the are, wider on the top and more narrow toward the bottom?

Question

Wouldn’t it make more sense to have the cup be a consistent width throughout? Or, even make the cup wider at the bottom to make it more stable when sitting on a surface?

In: Engineering

Answer 1

While some of these reasons are true, the main reason is that stacking the cups takes up less space during transport and storage, saving money for the manufacturer, distributor, and retailer.