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The DGE reference values depend on age.

Recommended drinking amount

liters per day

1.7L

1.7

According to the DGE, at 80 kg you need about 35 ml per kg from drinks and food – 2.8 litres. You drink around 1.7 litres of that, food provides the rest.

Equivalent to approx.

9 glasses of 200 ml · 3 bottles of 500 ml

Where the water comes from

  • Drinks1.7 L62%
  • Solid food1.1 L38%
Water from drinks and food (35 ml/kg)
2.8 L
Of which to drink
1.7 L
Drinking amount per day
1.7 L
DGE reference value for drinks in your age group (from 25 years)
1.4 L

Guidance, not a diagnosis. Based on the DGE reference values for water intake with normal energy intake; the surcharge for sport is an assumption. Heat, fever, pregnancy and breastfeeding increase the need; with heart or kidney disease, follow your doctor's advice.

How this was calculated
Water = body weight × ml/kg (DGE) · drinking amount = share of drinks + activity surcharge
80 kg × 35 ml = 2.8 L
2.8 L × 62 % = 1.7 L

Water Intake Calculator by Rechnerzentrale(opens in a new tab)