Ollie [ol-lie] as a boys' name (also used less generally as girls' name Ollie) is of Latin origin, and Ollie means olive tree. Ollie is a version of Oliver (Latin). Associated with: tree.
The Takeaway. On average men need 3.7 liters of fluids per day, and women need 2.7 liters. All fluids count, including milk, juice, coffee, tea, and even water-rich foods. Thirst and urine color might be better guidelines for staying hydrated. Weather, activity level, illness, and age can all impact water needs.
Women should drink about 2.2 liters (about 9 cups) of total fluids a day; This is just a baseline, of course. If you exercise, spend time in hot or dry weather, you consume a significant amount of diuretics (e.g. caffeinated drinks like soda), or your medications require additional water consumption, you may need more water.