Pregnancy water intake calculator
Choose a clear daily goal, convert it to your bottle and see what remains.
Direct answer: ACOG recommends 8–12 cups of water a day during pregnancy—64–96 US fluid ounces, or approximately 1.9–2.8 litres. Individual needs can differ.
Choose a goal inside ACOG's general 8–12 cup range, or use the exact goal your clinician gave you. Other beverages and foods can contribute fluid, but this tracker counts water only.
remaining toward your selected water goal
Why pregnancy hydration matters
Water supports digestion, circulation and waste removal, and helps form the amniotic fluid around the fetus. Drinking steadily through the day is usually more comfortable than trying to catch up all at once.
ACOG's pregnancy hydration answer gives the 8–12 cup range and explains water's role. For total water from all food and beverages, the National Academies Dietary Reference Intake report lists an adequate intake of 3.0 litres a day during pregnancy. These figures describe different things, which is why this tool labels its count as water only.
Common questions
How much water should I drink while pregnant?
ACOG advises 8–12 cups of water per day during pregnancy. That is 64–96 US fluid ounces, or about 1.9–2.8 litres of water.
Do tea, milk and food count toward hydration?
Foods and beverages contribute to total water intake, but this simple tracker counts plain water only. Ask your care professional about caffeine, sugar or any fluid restrictions relevant to you.
Do I need more water in hot weather or during exercise?
Needs can increase with heat, activity, fever, vomiting or diarrhoea. This calculator does not adjust safely for those factors; use thirst, local health advice and your clinician's guidance.
Can drinking too much water be harmful?
Excessive water in a short period can be dangerous. Do not force large quantities or override a clinician-directed fluid limit. Seek medical advice for persistent intense thirst or concerns about hydration.
Pair hydration with the pregnancy weight gain guide, or browse all free pregnancy and baby tools.