How much water should I drink?
A simple starting point from your weight and how active your day is. It is a guide, not medical advice.
0 viewsAbout 33 ml per kilogram, plus a little more on active days. Thirst, heat, illness and a doctor's advice all come first. This is not a prescription.
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How to use it
- Enter your weight.
- Choose how active your day is.
- Read a rough daily amount of water, in millilitres, glasses and cups.
Questions and answers
Does coffee count?
Drinks and water-rich food all contribute. This number is a daily target for fluids, not a rule to drink only plain water.
How much water should I drink a day?
Needs vary with size, activity and weather. Many adults need around 1.5 to 2.5 litres from drinks, plus water in food.
Is this medical advice?
No. Some health conditions need less or more water, so follow your doctor's advice.
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