What is a healthy body water percentage?

Typically, adult males should have 50–65% body water, and adult females 45–60%. These percentages can vary based on age, fitness level, and overall health.

How does the Watson formula calculate body water?

The Watson formula uses weight, age, and gender to estimate total body water. For men: TBW = 2.447 - (0.09156 × age) + (0.1074 × weight). For women: TBW = -2.097 + (0.1069 × weight) + (0.2466 × age).

Why is body water percentage important?

Body water percentage is crucial for maintaining proper hydration, which affects nearly every bodily function including temperature regulation, joint lubrication, nutrient transportation, and waste removal.

How can I increase my body water percentage?

To increase body water percentage, drink adequate water throughout the day, consume water-rich foods, limit diuretics like caffeine and alcohol, and maintain a balanced diet with proper electrolytes.

Body Water Calculator - Calculate Your Total Body Water Percentage

Weight (kg)

Age

Gender

Your Total Body Water

42.5 Liters

58%

Healthy hydration level for your age and gender

Dehydrated

Moderate

Healthy

Optimal

Hydration Insights

Your hydration level is within the healthy range
Continue drinking 8-10 glasses of water daily
Include water-rich foods in your diet
Increase water intake during exercise

Understanding Body Water Percentage

Water is essential for nearly every bodily function, from regulating temperature to lubricating joints and transporting nutrients. Your body water percentage represents the amount of water in your body compared to your total weight.

Why Body Water Percentage Matters

Maintaining proper hydration is crucial for optimal health. Adequate water levels support cognitive function, physical performance, digestion, and detoxification. Dehydration can lead to fatigue, headaches, and impaired physical and mental performance.

How the Watson Formula Works

The Watson formula is a widely used method for estimating total body water based on weight, age, and gender. It was developed through clinical research and provides a reasonably accurate estimate for most adults without requiring complex measurements.

Frequently Asked Questions

What is a healthy body water percentage?: Typically, adult males should have 50–65% body water, and adult females 45–60%. These percentages can vary based on age, fitness level, and overall health.
How does the Watson formula calculate body water?: The Watson formula uses weight, age, and gender to estimate total body water. For men: TBW = 2.447 - (0.09156 × age) + (0.1074 × weight). For women: TBW = -2.097 + (0.1069 × weight) + (0.2466 × age).
Why is body water percentage important?: Body water percentage is crucial for maintaining proper hydration, which affects nearly every bodily function including temperature regulation, joint lubrication, nutrient transportation, and waste removal.
How can I increase my body water percentage?: To increase body water percentage, drink adequate water throughout the day, consume water-rich foods, limit diuretics like caffeine and alcohol, and maintain a balanced diet with proper electrolytes.

Medical Disclaimer: This calculator provides estimates only and should not be used as a substitute for professional medical advice. Always consult with a healthcare provider before making any health-related decisions. This tool follows general guidelines but may not account for individual variations recognized by WHO and FDA. Results are based on statistical averages and should be interpreted as general guidance rather than definitive medical assessment.