The amount of water one should drink daily varies depending on several factors, including age, gender, weight, activity level, and climate. A general guideline often cited is the "8x8 rule," which suggests drinking eight 8-ounce glasses of water a day, equating to about 2 liters or half a gallon.
However, more personalized recommendations by the National Academies of Sciences, Engineering, and Medicine in the United States suggest:
- About 3.7 liters (125 ounces) for men
- About 2.7 liters (91 ounces) for women
These recommendations include all fluids consumed, not just water, and also account for fluids from foods.
To determine how many bottles of water you need, you'll need to know the size of the bottle. For example, if you have a standard 16.9-ounce (500 mL) bottle, the general 8x8 rule would suggest around four such bottles a day. For the more specific recommendations:
- Men would need about 7.4 500 mL bottles (3.7 L / 0.5 L per bottle)
- Women would need about 5.4 500 mL bottles (2.7 L / 0.5 L per bottle)
These are general recommendations, and individual needs can vary, so listening to your body and consulting with a healthcare provider for personalized advice is always a good idea.
How many bottles of water should you drink a day?
1 answer