Water Intake Calculator — Daily Water Needs India 2026
Calculate daily water requirement by weight, activity and climate
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Your Daily Water Needs
DAILY WATER REQUIREMENT
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Base Requirement
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Activity Addition
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Hourly Target
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With Food (20%)
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Frequently Asked Questions
In India's hot climate, recommended intake is 3-4 litres/day for adults. The general formula: 35ml × body weight in kg. A 70kg person needs ~2.45L base, adjusted for activity (add 0.5-1L for exercise) and climate (add 0.5L in summer).
Partially. Tea and coffee have mild diuretic effect — they cause slightly more urine output. Net contribution: about 50-70% of liquid volume. Coconut water, buttermilk, and fruit juices count fully. Sugary soft drinks do not count towards hydration goals.