Body Water Percentage Calculator
Estimate your total body water percentage based on age, gender, and weight using the Watson formula.
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Body Water Content
The human body is approximately 50-65% water for males and 45-60% for females. The Watson formula (1980) estimates total body water from age, height, and weight. Body water percentage decreases with age and higher body fat. Adequate hydration is critical for temperature regulation, nutrient transport, and organ function.