Mr Coffee type?
half the number of cups. For your question,
2, ... 4, ..., 6 coffee measures

More or less depending how strong you like it.

EDIT
standard "coffee measure" is 2 tbsp.

I have a scoop that is I think about 1 teaspoon, so it's one per cup for nice bold coffee! Use a lil' less if you like it weaker.
Funny, I was just about to make some!
edit: I just checked, my scoop that came with my pot is 1 tablespoon!

I use 4 tsp per 4 cups of water and so on

http://www.jitt…

http://www.make…

A whole lot less than what it says on the can (unless you like it super strong) I use a level 1/3 cup scoop (80 ML) for a 12 cup pot. Adjust accordingly until you find a strength that suits you.I always make a full pot every time. I also make my pot of coffee the day before I am going to use it. I shut the pot off as soon as it is dripped and let it sit overnight (or until it is gone) on the burner. I then reheat it in the microwave oven (by the cup) for 3 minutes to drink it. It becomes much smoother with no bite by doing it this way.

start with 3 tablespoons for a 12 cup pot and adjust from there...