Body Water Calculator

Body Water Calculator helps you estimate the percentage of water in your body, which is essential for understanding hydration, metabolism, and overall health. Maintaining a healthy water balance supports organ function, circulation, and physical performance. This calculator provides a quick reference to see if your hydration is within a healthy range.

Height (Feet)

Height (Inches)

Weight (lb)

Age

Gender

Estimated Body Water:

How Body Water Is Calculated

Modern Body Water Calculators use formulas such as Watson formulas or age- and gender-adjusted estimates to estimate total body water in liters or percentage.

Common formulas (for reference):

Men: Total Body Water (L) = 2.447 − (0.09156 × Age) + (0.1074 × Height cm) + (0.3362 × Weight kg)

Women: Total Body Water (L) = −2.097 + (0.1069 × Height cm) + (0.2466 × Weight kg)

How to Use the Body Water Calculator

1. Select your gender.

2. Enter your age.

3. Input your height and weight.

4. Click "Calculate".

5. View your estimated total body water and percentage.

Notice

This Body Water Calculator is for informational purposes only and does not provide medical advice. Consult a healthcare professional for personalized guidance.

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Body Water Calculator FAQ

What is total body water? +

Total body water represents the total amount of fluid in your body, typically expressed as a percentage of body weight. It is essential for overall health and proper body function.

Does body water percentage change with age? +

Yes. Total body water generally decreases with age due to changes in muscle mass and body composition.

Is body water the same as hydration? +

Not exactly. Body water percentage shows the total water in your body, while hydration refers to the balance of water intake and loss.

How can I increase my body water percentage? +

Drinking enough water, consuming water-rich foods, and maintaining healthy muscle mass can help increase total body water.

How accurate is this Body Water Calculator? +

This calculator provides an estimate based on widely used formulas. Actual body water may vary due to hydration, health conditions, and body composition.