Water Intake Calculator

A general guideline is to drink about half your body weight in ounces (e.g., 150 lbs = 75 oz). However, your needs vary based on activity level, climate, health conditions, and diet. The National Academies recommends about 3.7 liters for men and 2.7 liters for women from all beverages and food.

Yes, coffee and tea do contribute to your daily fluid intake. While caffeine has a mild diuretic effect, the net hydration from coffee is still positive. However, plain water is ideal for the majority of your hydration needs.

Check your urine color - pale yellow indicates good hydration, dark yellow means you need more water. Other signs of dehydration include headaches, fatigue, dry mouth, and decreased urine output. Thirst is a late indicator, so try to drink before you feel thirsty.

Yes. Pregnant women need about 10 cups (2.4 liters) of fluids daily, and breastfeeding women need about 13 cups (3.1 liters). Adequate hydration supports amniotic fluid levels, increased blood volume, and milk production.