this is a great question! webmd offers a fun quiz about water intake. try it out to see how you score! unfortunately there's no good scientific answer to your question. the institute of medicine recommends men get 125 ounces of water daily from all sources. that includes fruits vegetables and other sources. women need slightly less than that. the quiz (linked above) states the u. s. government's "dietary guidelines for americans" doesn't recommend "purposeful drinking" of water for hydration unless you routinely engage in vigorous physical activity or are exposed to heat stress. so unless you're constipated or compete in triathlons you're probably getting enough water just by drinking normally and eating some fruits and vegetables. hope this helps!
how many cc of water should a person drink in 1 day