This calculator says you should drink
Where Wt is your weight in pounds and Oz is the volume of water in ounces
But I suspect some of that is fatphobia (It's okay to be fat): the Mayo Clinic recommends 15.5 cups per day, ~20% of which is from food[1], meaning 12.4 cups (~100 oz)
Water: How much should you drink every day? - Mayo Clinic âŠī¸