Hydration Calculator
Estimate daily water intake from body weight using a simple general formula; medical needs, climate and activity are not included.
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How to Use
- 1Open the Hydration Calculator calculator.
- 2Enter your values into the labeled fields.
- 3The result updates instantly as you change a value.
- 4Review the displayed result and any assumptions or limitations shown by the tool.
About this tool
Calculate your recommended daily water intake based on body weight. Get instant, accurate results in your browser — no sign-up required.