How long should a gallon of water last for one person? Understanding Your Hydration Needs
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3 min read
According to the U.S. National Academies of Sciences, Engineering, and Medicine, men require about 3.7 liters (almost a gallon) of fluids daily, while women need about 2.7 liters (well over half a gallon). This highlights that a single gallon of water can last anywhere from less than a day in extreme conditions to several days in a low-activity survival situation.
