how many litres is 8 glasses of water a day?
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To prevent dehydration, you need to drink adequate amounts of water. There are many different opinions on how much water you should be drinking every day. Health authorities commonly recommend eight 8-ounce glasses, which equals about 2 liters, or half a gallon. This is called the 8×8 rule and is very easy to remember.
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Both are American studies that refer to research into the '8x8' rule, which promotes drinking at least eight 8-oz glasses of water a day (1.9 litres). This is much more than the 'about 6-8 glasses' (1.2 litres) of fluid a day advocated by the UK government. Keeping hydrated is important.
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The NHS recommends drinking 1.2 litres of water per day (six to eight glasses), but Somani believes as much as three litres is needed daily, especially in warm weather.
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The National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is: About 15.5 cups (3.7 liters) of fluids for men. About 11.5 cups (2.7 liters) of fluids a day for women.
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How much water should you drink a day? Girls aged 9-13 years need 1.3 to 1.5 litres per day. Boys aged 9-13 years need 1.5 to 1.7 litres per day.
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For men, the Institute of Medicine (IOM) recommends a total of 13 cups (about 3 liters) of fluid each day. For women, they suggest 9 cups (a little over 2 liters) of fluid each day. Pregnant women should drink about 10 cups of water daily. Those who breastfeed need about 12 cups.
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Does Drinking a Gallon of Water a Day Have Benefits? Hydration needs are highly individual and depend on many factors, including your body size and activity level. Many people follow the 8x8 rule, which recommends drinking eight 8-ounce (237-ml) glasses, or about half a gallon (1.9 liters), of water daily.
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2 liters (0.5 US gal) is about 8 glasses of water. Having a container that size may help you remember to drink enough water every day. If you have an empty 2-liter soda bottle, fill it with water and put it in your fridge.
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Hot water is no different than room temperature or cool water when it comes to keeping you hydrated. A common recommendation from health authorities is that an adult should drink eight 8-ounce glasses (about 2 liters or a half gallon) of water a day.
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Since the medical industry is referring to a standard 8 oz. cup of water as a 'glass', eight glasses would be 64 ounces. If you are using a store bought bottle which is labeled '1/2 liter', this is the equivalent of approximately 16 ounces and would therefore require you drink four of these a day.
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Keeps you hydrated Hot water is no different than room temperature or cool water when it comes to keeping you hydrated. A common recommendation from health authorities is that an adult should drink eight 8-ounce glasses (about 2 liters or a half gallon) of water a day. That's a hard target for many people to hit.
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The Origin of the 8×8 Rule For someone eating a diet of 2,000 calories per day, this adds up to 2,000 ml (roughly 64 oz), or eight 8-oz glasses.
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Most people need about 8 glasses of water or water equivalents a day (one glass = 8 ounces or 1 cup). This amount varies, though, depending on your weight, gender, age, activity level, diet, health, pregnancy, and the climate you live in.
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For someone eating a diet of 2,000 calories per day, this adds up to 2,000 ml (roughly 64 oz), or eight 8-oz glasses. But the report also declared that much of this water could be obtained from foods you consume. Another probable origin of the 8x8 rule is the work of a nutritionist named Dr. Frederick Stare.
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​Water: How Much to Drink Per Day Having a water drinking schedule helps you to remember to drink at least 8 glasses a day. ​at least 8 glasses of water a day for a healthy body.
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How much water do you need to drink every day? A common recommendation is to drink six or eight 250 mL (8 fl oz) glasses of water or other fluid every day.
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Given that evidence is lacking and many factors affect individual hydration needs, drinking a gallon (3.8 liters) of water per day is likely arbitrary and unnecessary — unless your body requires that much water for proper hydration.