How much water should a single person use per day?
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3 min read
According to the U.S. National Academies of Sciences, a healthy adult male needs about 3.7 liters (15.5 cups) of fluids per day, while an adult female needs around 2.7 liters (11.5 cups). However, total daily water usage extends far beyond drinking, encompassing household activities like bathing, cooking, and flushing toilets.