0 litres/day
—
Millilitres
—
Glasses (250 ml)
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Cups (8 oz)
Estimate based on ~35 ml/kg plus activity and climate. Needs rise with illness, pregnancy and breastfeeding. Food also contributes ~20% of fluid intake.
Frequently Asked Questions
How much water should I drink a day?
A common guideline is about 30–35 ml per kilogram of body weight, plus roughly 350–500 ml for every 30 minutes of exercise, with more in hot or humid weather.
Estimate your recommended daily water intake based on your weight, activity and climate.