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.
Total Daily Water. The exact amount of water you need every day varies depending on your gender, activity level and current state of health. Usually women need about nine 8-ounce cups of liquids daily, while men require 13 8-ounce cups. All beverages can account for your fluid intake, although water is calorie-free and cuts out any calories from regular sodas and sweetened teas when you drink it in place of these sugary beverages.