The amount of water you should drink daily depends on your age, sex, activity level, and other factors such as pregnancy or breastfeeding. Here are general guidelines:

• Adult men (19 years and older): About 104 to 125 ounces (13 to 15.5 cups) of total fluids per day

• Adult women (19 years and older): About 72 to 91 ounces (9 to 11.5 cups) of total fluids per day

• Pregnant women: Around 80 ounces (10 cups) daily

• Breastfeeding women: Up to 104 ounces (13 cups) daily

• Children and teens: Recommendations vary by age, from about 40 ounces (5 cups) for young children to 64–88 ounces (8–11 cups) for teens

These amounts include all fluids consumed, including water from food (which is about 20% of intake) and beverages. A common practical approach is to drink about half an ounce to one ounce of water per pound of body weight daily. For example, a 175-pound person should drink roughly 90 to 175 ounces of water, adjusting for activity and climate

. Additional water is needed if you exercise, are in hot climates, or have health conditions causing fluid loss. Listening to your body's thirst signals and drinking when thirsty is also effective for most people

. In summary, a typical healthy adult should aim for roughly 72 to 125 ounces of water per day, adjusting based on personal factors and lifestyle.