The traditional method for measuring water for rice is to flatten the rice in a bowl or pot, place your hand on top and pour until the water reaches your third knuckle on your middle finger. This method works for any amount of rice and you needn't bother with measuring cups. It works for both rice cooker and pot.

note: Sticky rice is a seperate dish unto itself in Chinese cuisine, it has meat and vegetables cooked with it. It's not served plain. Long grain white rice is what you would eat with your meal.