Water Intake Calculator

A simple ml-per-kg hydration estimate plus activity water.

Climate, health and medical conditions are not modelled.

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health

Input Parameters

Calculation Result
Calculated Result
2,450 ml

2.45 litres using 35 ml per kg plus activity water.

Summary Breakdown
Base (35 ml/kg)
2,450 ml
Activity addition
0 ml
Total
2,450 ml
Hydration needs vary. This is not medical advice and does not apply to all health conditions.
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Calculation Formula & Methodology

ml ≈ 35 × kg + 350 × (activity minutes / 30).

All arithmetic is processed locally in your browser session using IEEE 754 precision with boundary checks.

Worked example

Scenario: 70 kg, 0 activity.
Calculated Outcome: 2,450 ml.
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Frequently Asked Questions

When should I use the Water Intake Calculator?

A simple ml-per-kg hydration estimate plus activity water. Always read the formula and assumptions on the page before relying on a figure.

Are the results official?

No. OmniCalc runs the math in your browser from the inputs you provide. Laws, lender policies and medical guidance are not applied automatically.

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