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What Is Total Body Water

Total Body Water, abbreviated TBW, is a measure of water stored or residing in your organs, tissue, and other body parts. And it resides in both at intracellular fluid (ICF), the fluid within cells and extracellular fluid (ECF), the fluid outside the cells.

What Is Your Total Body Water

Below is a Total Body Water Calculator that can estimate the amount of water you should have, in liters (L), and as a percentage of your body weight.

Total Body Water Calculator

Should You Be Concerned About Your Total Body Water

Yes you should be concerned about your Total Body Water (TBW) in order to stay adequately hydrated. The adage that you should drink 8 glasses of water a day does not hold water. There is more to being properly hydrated than keeping up with 8 glasses a day.

Knowing TBW on its own is not enough to really know how much water intake you need on daily basis, but it is a good start. TBW is measured in liters and can also be expressed as a percentage of your body weight.

So in your steps to knowing how much water to take everyday you need to know your TBW. Here is a simple calculator that will calculate your TBW for you. You simply need to be ready with your age, height, weight and sex.


How Does The Total Body Water Calculator Work

This total body water calculator uses your age, height, weight, and sex to estimate the volume of water in your body. It is based on a formula developed by Dr. P.E. Watson and his team and described in 1980 in the article Total body water volumes for adult males and females estimated from simple anthropometric measurements.

Now that you know what your estimated Total Body Water is, the next question is how much water do I need to drink daily to maintain this ratio or volume. The next step is to use a Water Intake calculator. This hydration calculator only gives a very rough estimate of how much water to intake based on gender, age as in adult or kid, and for females it asks further questions.

So it is rough because it will give the same amount of water for any adult despite their exact age, height and weight. So it is good for a start especially for someone who has no idea how much water to drink per day.

Click here to go to Water Intake Hydration Calculator

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