health calculator

Water Intake Calculator

Estimate a broad daily water intake range from body weight.

Calculator results are produced by fixed formulas only. AI is not used for calculation outputs.

Results calculated from the default values.

Results

Results are up to date with the current inputs.

Lower estimate2,100 mL/day
Upper estimate2,450 mL/day

How to interpret this estimate

Estimate a simple daily water range based on body weight. Uses a broad range of 30 to 35 milliliters per kilogram of body weight.

When this result is useful

Use this calculator to compare how Body weight change Lower estimate and Upper estimate, and to review alternative values before using the estimate for planning.

Common limitations

Climate, exercise, pregnancy, breastfeeding, diet, medication, and medical conditions can change fluid needs. People with heart, kidney, or fluid-balance conditions should follow professional guidance. Review the units and assumptions before interpreting the result.

This calculator uses the selected inputs and the fixed formula behind the tool to produce an estimate. Review the units, assumptions, and result labels before using the output for planning.

Health results are screening or planning estimates only. They do not diagnose health status or replace advice from doctors, dietitians, or qualified healthcare professionals.

Read the medical disclaimer for more context.

Assumptions

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