A daily fluid target from your body weight, adjusted for activity and India's climate — because Chennai in May and Shimla in January aren't the same ask.
Total fluid target, including water and other drinks. Food (especially fruit, dal, curd) also contributes 15–20% of daily fluid.
Rule of thumb: pale straw-coloured urine is a decent sign you're well hydrated; darker than that usually means drink more. People with kidney or heart conditions should get a fluid target from their doctor instead of a general calculator.
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