Water Intake Calculator
Get daily water from weight and activity as you type.
FREE - NO SIGN-UP - RUNS ON YOUR DEVICE
Your entries stay on your device
- Liveupdates as you type
- 0data uploaded
- 1clear result
- Freeno account needed
What you can count on
- 0data sent
- Calculations run in this browser
- Entries stay on this device
- Liveresult
- Figures update as values change
- Copy the summary when ready
- Clearmethod
- Inputs and formula basis shown
- Estimate, not medical advice
Water Intake Calculator at a glance
- Input
- Body weight and active exercise minutes
- Output
- daily water from weight and activity
- Health notice
- Estimate, not medical advice
- Processing
- Runs locally in your browser
- How the figure is worked
- 35 ml/kg + 350 ml per 30 min
- Price
- Free
- Account required
- No
How to use Water Intake Calculator
- 1
Enter your values
Enter body weight and active exercise minutes.
- 2
Review the estimate
See liters, milliliters, glasses and the activity allowance.
- 3
Copy the result
Use Copy result to save the displayed summary for your own notes.
Frequently asked questions
Is this result medical advice?
No. It is a general estimate based on the values and formula shown. A qualified health professional can interpret measurements for your circumstances.
Are my entries uploaded?
No. The calculation runs in your current browser tab, and the tool does not send the values to a server.
Why might my result differ elsewhere?
Methods, rounding and reference assumptions vary. Check the selected units and inputs, then treat the result as an estimate rather than a diagnosis.
Understanding the estimate
Enter body weight and active exercise minutes. See liters, milliliters, glasses and the activity allowance. This calculator provides an estimate, not medical advice.
- The result follows the method named in the tool and rounds figures for easy reading.
- Personal circumstances vary, so use the figure as a general reference and not a diagnosis.
Full specification
| Input | Enter body weight and active exercise minutes. |
|---|---|
| Output | See liters, milliliters, glasses and the activity allowance. |
| Health notice | This result is an estimate for general information and is not medical advice. |
| Processing | All calculations run locally in the current browser tab. |
| How the figure is worked | 35 ml for every kilogram of body weight, plus 350 ml for each 30 minutes of exercise. Kilograms or pounds. |
| Price | Free |
| Account required | No |
Keep going with the same files
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