So, how many ounces? For an average adult: 64-100 ounces is a solid range. But it’s not a law.
Listen to your body. Use the urine test. Eat a juicy peach. And don’t chug like you’re in a fraternity.
You’re a magnificent, squishy water creature. Drink enough to keep your brain from shrinking, but not so much you float away. Now go fill up your cup—your brain just shrunk reading this.