For most healthy adults, a good range is between 60 and 100 oz per day. If you’re active, big, or live in a hot place, aim higher. If you’re tiny, sedentary, or in an air-conditioned cave, aim lower.
Here’s a quick guide: Women: ~75 oz (about 9 cups). Men: ~100 oz (about 12 cups). But remember—these are just starting points. Your body is the real boss.
Pro tip: get a reusable water bottle you love. If it’s cute or funny, you’ll drink from it more. I have one that says “I’m a thirsty boi” and trust me, it works.