Total Body Water Calculation

Human body uses water in all its organs, tissues, cells to help in body temperature regulation. Body loses water through several activities like sweating, breathing, digestion, breathing etc. It is necessary to rehydrate by drinking plenty of water and fluids as this helps in normal body functioning. In the discourse it is prudent to know that total body water percentage is about 60.

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Total Body Water : Liters

Percentage of Body Weight : %

Percentage of water intake: brief overview

There are factors that influences amount of required water intake. The climatic condition, physical activity, health condition and illness and associated health issues determine how much percentage of water in body is necessary. The actual water percentage in a human body can vary by age, sex and weight. It is worth mentioning that from birth more than your body weight consists of water. And throughout life the average body percentage of water remains above 50 percent. In an individual’s body, total percentage of water changes with increasing age. The following chart provides clear overview of normal water percentage in adults and children.

AdultsAges 12 to 18Ages 19 to 50Ages 51 and older
Maleaverage: 59 range: 52%–66%average: 59% range: 43%–73%average: 56% range: 47%–67%
Femaleaverage: 56% range: 49%–63%average: 50% range: 41%–60%average: 47% range: 39%–57%
ChildrenBirth to 6 months6 months to 1 year1 year to 12 years
Infants and childrenaverage: 74% range: 64%–84%average: 60% range: 57%–64%average: 60% range: 49%–75%

Basic steps for using body water calculator

To measure body water percentage it is a good idea to use the bodywater calculator, use of these online calculator is simple. To find percentage of body water mention gender, age, height and current weight. The preferred system of measurement can be Metric or Imperial. Just by clicking the calculation button body water percentage of an individual can be calculated.

The formula runs on body weight, height, gender and age

Body water percentage is calculated basing upon a formula developed by dr. P.E. Watson and his associates in the year of 1980. A quick look in this formula unveils the reason of using body weight, age, height and gender for calculation. Precisely, these are the variants used to generate the body water percentage following the formula as mentioned below:

Watson formula for men:

2.447 – (0.09145 x age) + (0.1074 x height in centimeters) + (0.3362 x weight in kilograms) = total body weight (TBW) in liters

Watson formula for female:

–2.097 + (0.1069 x height in centimeters) + (0.2466 x weight in kilograms) = total body weight (TBW) in liters

To obtain the percentage of body water, presume 1 liter = 1 kilogram. Next, divide your Total Body Weight or TBW by your weight. This gives you an overview whether you’ are in a healthy range for percentage or not.

Water in our body parts

Body of a new born consists of 75% of water and an elderly individual can be a little more than 50% of water. The excess amount of water is drained out through urination, sweat, inhaling-exhaling and other processes.

In human body, water is stored mainly in three locations and further few of our body parts have higher content of water than the rest :

  • Cells (two third of water in human body is stored within cells)
  • Space between blood and cells
  • Blood
Body partWater percentage
Brain and heart73%
Lungs83%
Skin64%
Muscles and kidneys79%
Bones31%

Consumption of water rich foods

To remain hydrated and proper body functioning it is essential to intake plenty of water. From millions of tiny blood cells to skins and organs, everywhere water is present. Total body water percentage needs to be monitored to ensure our body is maintaining the correct water balance, Water, fluid intake keeps hydrated and there are many fruits and vegetables which are great source of water. Taking skim milk is a great idea to supply water in your body. Along with taking water and other fluids as juices and soups, few vegetables like cucumber, tomatoes, spinach, mushrooms, melons, broccoli, brussel sprouts, oranges, apples and blueberries contain 85% to 95% of water in them. It is advisable to consume the fruits and veggies rich in water.

Importance of water in overall body functioning process

Water is very much important for proper body functioning, few of the reasons are as follows:

  • Protects tissues, joints and spinal cord
  • Water helps in removal of toxins and wastes from the body
  • Digestion starts with saliva and basis of saliva is water
  • Keeps body hydrated and prevents dehydration
  • Water helps food movement within intestinal tracts
  • Helps organs like liver and kidneys to flush out wastes

Steps to maintain a proper body water percentage and balance

To maintain healthy water percentage within the body it is prudent to use the body water percentage calculator. Percentage of water in body in a lifetime ranges between 50% to 60%. Seven to eight glasses of water with each glass containing 12 ounces of water must be taken in a cycle of 24 hours. There are different ways of supplying water in our bodies, it is not mandatory to take only water but supplementing it with juices, other healthy drinks and soups can be alternatives. Intake of caffeine rich drink and alcohol may have detrimental effect on human body.

Detrimental effects of drinking too much or gallons water

To maintain a proper balance in water intake it is best to rely upon the online total body water percentage calculators. Drinking gallons of water a day can have side effects. This may lead to water intoxication. In this state, essential minerals and chemicals existing within an individual’s body get diluted. Too much dilution and removal of sodium from the body can lead to Hyponatremia. Excess intake of water may even result cognitive heart failure. There can be symptoms of other kinds of complications like diabetes.

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