According to history, a Chinese sailor named Paoon Lin has survived 133 days without water when his ship sank in 1942. Drinking adequate amount of water is essential for your health and well-being. Throughout each day we consume various forms of water – some of which is in our foods and others in the various liquids we drink. This total body water calculator uses your age, height, weight, and sex to estimate the volume of water in your body. Water makes up an estimated 60% of your body weight. How much does an individual use daily? About 25 liters (6.6 gal) is within the cells (intracellular). 1%. Does drinking a gallon of water a day sound like too much? Without sufficient water intake, human body has to prioritize what organs or process gets to use the available water. That’s 16 cups per day. 2 1/2 quarts from all sources, i.e. If about 70% of our body is water and water weighs 8.35 lbs/gallon. It is a widely accepted recommendation to store 1 gallon of water for each survival day of drinking water. It is based on a formula developed by dr. P.E. The human body does not necessarily need to consume pure water. It is said that on average the human body cannot survive beyond 3 days without water. A cubic kilometer of water equals about 264 billion gallons (1 trillion liters). Human body cells and organs need water to function properly. In fact, our bodies are made up of up to 60% of water. When you do the math it comes out to about 13 gallons. A cubic mile of water equals more than 1.1 trillion gallons. How Much Water Does One Person Drink? The average human in the US weighs on average 155 lbs. (158.7 lb.) on this Wikipedia page). water, food, etc. 123 gallons (National) How much water must a person consume per day to maintain health? About 3,100 mi 3 (12,900 km 3) of water, mostly in the form of water vapor, is in the atmosphere at any one time. The typical adult human body is made up of approximately 60 percent water. How much of the human body is water? It is a critical chemical component that your body depends on to survive. As per the Google-ator, A 72 kg. Lets say a person weighs about 150 lbs. In physiology, body water is the water content of an animal body that is contained in the tissues, the blood, the bones and elsewhere. The average person drinks 8 cups per day, equaling to 1/2 gallon per day and 182.5 gallons per year. How much of the earth's water is suitable for drinking? If you do not consume sufficient water, you will become dehydrated, and this will impact your body… How much water is used to flush a toilet? 66%. According to Guyton's Textbook of Medical Physiology, your body is made up of 57% water, therefore the amount of gallons in your body depend on your weight. What it needs are nutrients and electrolytes from the aqueous solution to be absorbed by the body. 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