Total Body Water Calculator

Our new Total Body Water Calculator is currently in development. It will soon allow you to calculate your estimated total body water percentage based on physiological formulas (such as the Watson or Hume-Weyers formulas) using parameters like age, weight, and height.

In the meantime, you can evaluate your daily fluid intake requirements using our updated Water Intake Calculator.

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Frequently Asked Questions

What is total body water? ▼

Total body water is the total amount of fluid contained in a person's body, typically representing about 50% to 60% of total body weight, depending on age, sex, and composition.