Body Water Percentage Calculator
Estimate your total body water percentage based on age, gender, and weight using the Watson formula.
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.
About This Tool
The Body Water Percentage Calculator estimates total body water percentage based on age, gender, and weight using the Watson formula.
Input your details into the form provided. The calculator then applies the Watson equation to determine your body's hydration status.
Use this tool for tracking changes in body composition over time or assessing overall health. It operates entirely within your browser without collecting any personal data.