Based on your body weight, with a bump for exercise, this gives a rough daily water target in litres, millilitres and cups. Take it as a general guide rather than medical advice — and your inputs are never stored.
Water Intake Calculator gives a quick, private estimate using well-established formulas — informational only, and nothing you enter is stored.
No — it is a general informational estimate. Individual hydration needs vary.
Yes — hot or humid conditions and altitude increase needs beyond this estimate.
No — everything is calculated locally in your browser.
About 2.8 L per day
This is a general informational estimate, not medical advice or a diagnosis. Individual needs vary — consult a qualified healthcare professional for guidance. Needs also depend on climate, health and diet.