Adult Total-Water Reference
This tool shows a sex-based adult reference rather than a weight-based calculation. Total water includes moisture in food and all drinks; it is not an amount of plain water to drink in addition to everything else.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
Reference for generally healthy adults; total water includes food and all beverages.
How to use this tool
Select the adult male or female reference. The form does not collect weight, weather, exercise or medical conditions, so it does not personalise actual fluid requirements.
Results and examples
Read total water separately from the beverage portion. The latter assumes 80% of the total, an illustrative split that may not match your food choices or sweat losses.
Worked example
A total of 3.7 litres with an 80% beverage assumption produces 2.96 litres from drinks.
Limitations
- It does not replace prescribed fluid restrictions or cardiac and kidney care.
- The primary reference values and their population scope still need rechecking.
Fields
| Field | Guidance and constraints |
|---|---|
| Adult reference group | Reference for generally healthy adults; total water includes food and all beverages. · Women, age 19+ / Men, age 19+ |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Frequently asked questions
Must I drink the total as plain water?
No. Food moisture and other drinks contribute.
Does exercise change the result?
No. Exercise and environment are not inputs.
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