Most experts agree: for men, about 125 ounces per day (3.7 liters) is a solid goal. For women, it’s around 91 ounces (2.7 liters). But—and this is a big but—that includes water from food, coffee, tea, and even that juicy watermelon you had for lunch.
Yeah, coffee counts. The old myth that it dehydrates you? Dead wrong. Unless you’re chugging pure espresso shots like a villain, your morning brew is mostly water. Same with tea, soup, and even that sneaky cucumber in your salad. So relax—you’re probably not as dehydrated as your favorite influencer claims.
Your weight and activity level matter way more than a random number. A simple formula: half your body weight in ounces is a good baseline. Weigh 150 pounds? Aim for 75 ounces. Weigh 200? Then 100 ounces. But again—listen to your body, not a calculator.
When you need to drink more
If you’re sweating buckets at the gym, running a marathon, or just walking outside in July in Phoenix, drink extra. Your body is basically a leaky kettle at that point. Add about 12-16 ounces for every hour of exercise, but sip it, don’t drown it.
Pregnant or breastfeeding? Your water needs spike. Pregnancy adds about 10 ounces to your daily target; breastfeeding adds roughly 20-30 ounces. Your body is literally making milk or building a human—give it some hydration respect.
And if you’re sick—fever, vomiting, diarrhea—you’re losing water fast. Drink enough to keep your pee a pale yellow, like lemonade. Dark yellow pee? That’s your body sending a polite memo: “Hey, drink up.”
Chart Shows How Much Water People Need To Drink According To Weight
