A coffee maker cup is different than your average measuring cup, usually smaller. As a result, a 5 cup coffee maker will not give you five cups of coffee in the usual mug sense of the word. The coffee maker measuring system seems more confusing than it needs to be, and we're not sure why. In general, a 5 cup coffee maker brews 25 oz. of coffee, or, if you prefer milliliters, it makes 740 ml. Thats about 5 oz of coffee per cup. For a reference point, this would be 2 tall coffees at Starbucks with 1 extra ounce thrown in.