Enter your weight to get your daily water need. For example, 60 kg needs about 2.1 litres (≈ 8.4 glasses).
Rule of thumb: 35 ml per kg
Water per day
2.1 L
Drink about 2.1 litres (≈ 8.4 glasses) of water a day.
A rough guide only. Heat, exercise, fever or medical advice changes the need.
The link includes the numbers you entered
| What | Formula | Example |
|---|---|---|
| Daily water | Weight × 35 ml | 60 × 35 = 2,100 ml = 2.1 litres |
| Glasses | ml ÷ 250 | 2,100 ÷ 250 = 8.4 glasses |
50 kg: 50 × 35 = 1,750 ml = 1.8 litres (≈ 7 glasses).
70 kg: 70 × 35 = 2,450 ml = 2.5 litres (≈ 9.8 glasses).
Heat, sport, heavy work, fever or diarrhoea raise losses — drink above the rule then. Pale-yellow urine means you are on track; dark yellow means drink more.
A common rule is 35 ml per kg of body weight. At 60 kg that is 60 × 35 = 2,100 ml or 2.1 litres.
One glass is taken as 250 ml. So 2.1 litres means 2,100 ÷ 250 = 8.4 glasses.
Do not drink a huge amount at once. Spread it through the day. With kidney or heart conditions, follow your doctor.
Partly, but plain water is the main count. Do not cut water because you had tea or coffee.
Yes. Children's needs vary by age and weight; the 35 ml rule is for adults. Ask a doctor for a child.
daily water requirement · how much water per day
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