Water Intake Calculator

This baseline uses a commonly cited guideline of roughly half your body weight in pounds, converted to ounces, as a daily starting point - then adds extra for exercise, since sweat increases fluid needs. It's a rough estimate meant as a starting point, not a precise physiological requirement.

Climate, altitude, overall health, and how much water you already get from food all shift what's actually right for you. Thirst and urine color are generally more reliable day-to-day signals than any fixed number. If you have a medical condition that affects fluid balance, follow guidance from your doctor instead of a general calculator.