How much water should you drink each day? The answer isn’t exactly the same for everyone. The Daily Hydration Calculator gives you an estimate based on factors such as your weight, activity level, climate, and other circumstances that can affect your fluid needs. Use it as a helpful starting point for planning your daily hydration, not as a medical recommendation. Your individual needs may be different, especially if you have a health condition or have been given specific fluid instructions by your healthcare provider.
Daily Hydration Calculator
Estimate how much fluid you may need each day based on
your sex, activity, and time spent in hot conditions.
Your Estimated Daily Hydration
Estimated fluids from beverages:
That’s approximately:
This is a general estimate, not an individual medical
recommendation. Water needs vary. Foods also provide
some of your daily water.
Important: If a healthcare professional
has told you to limit or closely manage your fluid intake,
follow those instructions instead of this calculator.
