you have two plastic reservoirs under the hood. the smaller one is for the windshield wiper fluid. The bigger one is for the coolant. It should be clearly marked on the cap of the plastic thing....
Where ever the liquid mark is at on the dipstick, determines how empty or full it is. exp:_____>If mark is between "F" and "E" it's half way full.
Also Have a good close look at the dipstick.Some...