Water Intake Calculator India
Calculate optimal daily water intake based on weight, activity level, and Indian climate. Includes food water sources.
Disclaimer: Results are general estimates and do not constitute medical advice. Consult a qualified doctor or dietitian for personalised health guidance.
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About Daily Water Intake Calculator
Calculate daily water intake requirement based on body weight, activity level, and climate. Shows breakdown of water from beverages vs food. Adjusts for Indian summer heat and exercise. Based on ICMR and WHO hydration guidelines.
Daily water needs vary considerably based on body weight, activity level, and climate — a commonly cited baseline is roughly 30-35ml per kg of body weight for a sedentary adult in a temperate climate, but this rises meaningfully with exercise, heat, and humidity, all of which are especially relevant in most of India's climate for a large part of the year. Standard “8 glasses a day“ advice is a rough, one-size-fits-all rule that doesn't account for individual body weight or activity differences, which is why weight- and activity-adjusted estimates are more useful for actual hydration planning. This calculator estimates your daily target and breaks it down into a practical hourly or per-glass schedule based on your specific stats and activity level.
How to use
- Enter your details in the input fields — results update live as you type, with no need to submit a form.
- Read the reference ranges shown alongside your result, since a single number is only useful in context.
- This tool gives an estimate for informational purposes only — it does not replace advice from a doctor or qualified professional.
- Use the related tools below if you want to check a connected metric as part of a fuller picture.
- All calculations run in your browser only; none of your health data is transmitted or stored anywhere.
Tool details
⚡ Next step — complete your workflow
Frequently asked questions
How much water should I drink in Indian summer?
Add 500ml-1L to your base requirement during Indian summers (March-June). If exercising, add another 500ml-1L per hour of activity.
Is 8 glasses of water per day accurate?
The "8 glasses" rule is a simplified guideline. ICMR recommends 35ml/kg body weight as baseline. A 70kg person needs ~2.4L/day from all sources.
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