The human body is about 60 percent water and thus needs constant hydration to work optimally. But, let’s be honest, just because you know the importance of water doesn’t mean you drink enough of it.

Soooo…how much water do you really need?

Here's what the internet had to say:

Healthline recommends the 8 x 8 rule—eight 8-ounce glasses, which is about 2 liters or half a gallon. Most glass or reusable bottles are about 18 ounces, which means you’ll need to fill your bottle four times to exceed the recommended amount.

Harvard Healthy Publishing, Harvard Medical School suggests drinking two to three cups (or 16 to 24 ounces) per hour. If you’re awake for 16 hours, you’ll need 32 cups (256 ounces/7.6 liters) per day.

The water bottles with recommended time and amount markers, and loved by social media influencers, ranging from 2.3 to 3 liters of water every day.

Essentially, there isn’t a one-size-fits-all recommendation. Height, weight, lifestyle, and health conditions all play a role in determining the best amount for you. The only way to know for sure is to ask your doctor. Generally speaking, however, two to three liters is a good place to start.

Note: The quality of your water matters.

For the body to benefit from your water intake, the water needs to be clean and clear of any contaminants. The solution: An in-home or at-office water filtration system, so you can fill your cup as much as you want.

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