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Body Water Calculator

Health
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Estimates the total amount of water in a person's body based on age, weight, gender, and height. This is an approximate calculation and individual results may vary.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Weight, Height, Age, and Gender in the units shown.

Step 2

Read Total Body Water in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Adult Male

Weight: 75 kg; Height: 180 cm; Age: 35 years; Gender: Male

Total Body Water: 20.3835 Liters; Total Body Water: 27.2 %

Adult Female

Weight: 60 kg; Height: 165 cm; Age: 40 years; Gender: Female

Total Body Water: 22.0605 Liters; Total Body Water: 36.8 %

Teen Male

Weight: 65 kg; Height: 175 cm; Age: 16 years; Gender: Male

Total Body Water: 16.3154 Liters; Total Body Water: 25.1 %

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.