Water Intake Calculator
Guideline only. Individual needs vary; consult a professional if you have medical conditions.
kg
Recommended intake
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In cups (250 mL)
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FAQ
How is this calculated?
Baseline 30 mL/kg/day, × activity factor (1.0–1.4) × climate factor (0.9–1.2). It’s a practical heuristic.
Does coffee/tea count?
Mostly yes, but plain water is best. Electrolytes may help with heavy sweating.
Medical considerations
If you have kidney, heart, or endocrine issues, ask your clinician for individualized guidance.