I have mentioned that not all authorities agree on the recommended daily intake of water. In recent data, Mayo Clinic notes that the U.S. National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is: about 15.5 cups (3.7 liters) of fluids a day for men and about 11.5 cups (2.7 liters) of fluids a day for women. About 80% of that comes from water and the rest from food.
So, the 80% that comes from water and other fluids would mean about 12.4 cups of fluids (99 oz.) per day for men and about 9.2 cups (73.6 oz.) per day for women.
The 12 cups per day for men is close to what I am averaging.
All sources note that the figures must be adjusted for weight, level of activity, ambient temperature, etc.