Water Intake Calculator

General guidance for healthy adults. Needs vary with health, medicines, climate and pregnancy. Follow your clinician's advice if you have a heart, kidney or other condition.

Your daily water goal

Example for 70 kg, moderate activity, age 30.

2.30litres

Drinks per day · 2,300 ml

250 ml cups9.0

500 ml bottles4.5

US fluid ounces78

Per waking hour (16 h)140 ml

How the number is built

70.0 kg x 33 ml per kg2,300 ml

Goal (rounded to 50 ml)2,300 ml

Compare with EFSA reference values

EFSA's adequate intake of total water is 2.0 L a day for adult women and 2.5 L for men, and about 20% of it usually comes from food. That leaves about 1.6 L and 2.0 L to drink.

Tea, coffee and milk count towards this drinks goal. The water in food comes on top (about a fifth of total water), so it is not included.

Pregnant or breastfeeding? Needs are higher (EFSA's reference is 2.3 L of total water in pregnancy and 2.7 L while breastfeeding), so use your midwife's or doctor's advice instead of this number.

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Log your water next to your meals in the Mealyno app.

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