We all pretty much need to start our day with a cup of coffee to get us through the day. However, after that cup of joe, we need to make sure we are taking in the right amount of ounces of water.The Mayo Clinic suggests that women should intake 11.5 cups, or 92 ounces, of fluid. It is the standard recommendation for all women, but many factors go into how much fluid you should have in a day. The chart below is fluid intake based on weight and exercise. For every 30 minutes of exercise, you should add on 12 ounces of fluid.