Daily water calculator 💧
Enter your weight, activity and climate and we'll tell you how much water you need per day and how to spread it out.
You need roughly
0 litres
0 cups (1 cup = 250 ml)
Spread it like this:
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How is it calculated?
We start at 33 ml per kg of body weight, add about 350 ml per 30 minutes of exercise, add 10–20% for hot climates, and add for pregnancy and breastfeeding per general guidance. Food also provides some water, so treat this as an estimate.
During Ramadan?
Spread the same amount between iftar and suhoor: 2 cups at iftar, 4 cups in between, and 2 at suhoor. Cut back on tea and coffee as they increase thirst.
⚠️ If you have kidney or heart problems, or your doctor has set a fluid limit, follow your doctor's advice.