Traditionally, It goes like this: take your weight, divide by two and that is the number of ounces of water you should drink every day. Ex: weight–150 pounds. Half of that is 75 so you would drink 75 ounces of water every day, which comes to a little over nine glasses of water, each glass being 8 ounces. It’s important to note that sodas, colas, milk, coffee and a lot of other beverages, do not count towards the total. However, fresh juices, like fresh orange juice, apple juice, etc., do. Some experts suggest drinking one ounce of pure water for every pound of weight of the body. Either way, it’s important to have plenty of pure, structured water to stay hydrated.