The general recommendation for daily water intake varies somewhat by source but converges around these guidelines:

• For men, about 3.7 liters (approximately 15.5 cups) of fluids per day.
• For women, about 2.7 liters (approximately 11.5 cups) of fluids per day.

These amounts include all fluids consumed, not just plain water, but also beverages like tea, coffee, juice, and water content in foods such as fruits and vegetables

. Other factors influencing how much water a person should drink include:

• Activity level: More water is needed if you exercise or sweat a lot.
• Climate: Hot or humid weather increases water needs.
• Health status: Illnesses, medications, pregnancy, and breastfeeding can raise fluid requirements.
• Diet: High salt, spicy, or caffeinated foods and drinks can affect hydration needs

Some guidelines, such as the UK NHS, recommend aiming for about 6 to 8 cups (1.5 to 2 liters) of fluid daily for most adults in temperate climates, emphasizing that all fluids count toward hydration

. It is also possible to drink too much water, which can lead to water intoxication, but this generally requires consuming very large amounts (e.g., over 8–10 liters in a short time)

. In summary, a typical adult should aim for roughly 2.7 liters (women) to 3.7 liters (men) of total fluids daily, adjusting intake based on individual factors like activity, climate, and health