Water Intake Calculator
Hydration needs vary by body size, climate and activity. This gives a sensible daily baseline in litres, adjusted upward for exercise.
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How this works
Baseline of 35 ml per kg of body weight, plus roughly 350–700 ml for exercise and an extra ~500 ml for hot/humid climates — a commonly used clinical rule of thumb, not an exact requirement.
Medical disclaimer
This tool provides general health information based on published formulas and guidelines. It is not a medical diagnosis and does not replace advice from a qualified doctor. If you have a health concern, please consult a physician or book a consultation on IMCURE.
Frequently asked questions
Does tea/coffee count towards this?
Yes, most fluids including tea and coffee contribute to daily hydration; plain water is still the best default choice.
