Body Water Percentage (TBW) Calculator
Calculate the total amount and percentage of water in your body.
This tool is for informational purposes only and does not replace medical advice. Consult a physician for decisions about your health.
kg
Result
42 litre
Total body water: 42 litres (%60)
Result in all units
Step-by-step solution
What Is Body Water Percentage?
Body water percentage shows what percentage of your total body weight consists of water. It averages about 55–60% in men and 50–55% in women. The percentage is higher in people with high muscle mass.
How is it calculated?
How Is It Calculated?
- Enter your age, sex, height and weight.
- The estimated total body water is calculated and compared to your weight.
A low water percentage often indicates inadequate hydration.
Frequently Asked Questions
Does muscle mass affect the water percentage?
Yes; muscle tissue is rich in water and fat tissue is poor in water, so the water percentage is higher in muscular people.