EEasynivo
Free health planning tool

Water Intake Calculator

Plan an approximate daily fluid range from body weight and exercise time.

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Result

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Enter values and select Calculate.

Method and assumptions

Shows 30–35 mL per kg plus 350 mL per 30 minutes of exercise as an editable planning estimate.

Important limitations

Needs vary with climate, health, pregnancy and diet; food and other drinks also contribute. Fluid restrictions require clinical advice.

Official references

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Sources & methodology

Calculation method
Shows 30–35 mL per kg plus 350 mL per 30 minutes of exercise as an editable planning estimate.
Evidence basis
Published health guidance combined with a simplified planning estimate.
Applies to
No statutory reference year. Results use the values and assumptions entered now.
Last reviewed
Limitations
Needs vary with climate, health, pregnancy and diet; food and other drinks also contribute. Fluid restrictions require clinical advice.

Sources

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Content basis and verification

· Calculations run in your browser. Check the formula and assumptions on this page, and confirm important financial, tax, medical or legal decisions against current official guidance.