The typical recommendation for daily water intake translates to about 4 bottles of water per day if using standard 16.9-ounce (500 ml) bottles. This is based on the "8×8" rule, which suggests drinking eight 8-ounce glasses (64 ounces) daily, equating to roughly 4 bottles of 16.9 ounces each

. However, the exact number of bottles you should drink depends on several factors:

• Body weight: A general guideline is to drink half your body weight in ounces. For example, a 160-pound person would need about 80 ounces, or about 4.7 bottles of 16.9 ounces each

• Physical activity: If you are active or exercise intensely, add 1 to 2 extra bottles to compensate for fluid loss through sweat

• Climate: Living in hot, dry, or high-altitude environments increases water needs, often to 5–7 bottles or more daily

• Diet: High salt, protein, sugar, caffeine, or alcohol intake can increase hydration requirements

Other health authorities recommend fluid intake in liters or cups: about 3.7 liters (125 ounces) for men and 2.7 liters (91 ounces) for women daily, which translates to roughly 5–7 bottles for men and 4–5 bottles for women depending on bottle size

. In summary:

• For average daily hydration, aim for about 4 standard 16.9-ounce bottles of water.
• Increase to 5–6 bottles if active or in warm climates.
• Adjust further based on body weight, activity level, and environmental factors.

Listening to your body's signals such as thirst and urine color also helps ensure adequate hydration