Water Intake Calculator
Estimate how much water you should drink per day based on weight, activity level, and climate.
Your Details
Recommended Intake
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Liters / day
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Millilitres
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Glasses (250ml)
| Base (weight × 35 ml) | - |
|---|---|
| Activity Add-on | - |
| Climate Multiplier | - |
| Total / day | - |
| US fl oz | - |
General guidance only — consult a doctor if you have medical conditions that affect fluid balance.