How much rice should I cook per person? I would like to know how much rice I should cook per person.
Preferably in some "fast" measurements - like cups, spoons, etc.

It would also be nice to know how much water should I add to the rice-cooker. 

Edit: I want to have the rice as a side dish, usually with some kind of stew. 

Edit: The cup I've been using is 300ml filled about 3mm below top edge (which is what i consider "full").
I usually use 1/4 cup per person for a smallish portion, and 1/3 cup per person if you're a bit hungrier. You'll probably want to check the instructions for your rice cooker to check exactly how much water you should add as different manufacturers vary. I believe the one I used in the past needed an equal quantity of water to rice.