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Daily Water Intake Recommendation from Weight Calculator

How much water you should drink each day.

Estimates recommended daily fluid intake: ≈ 30–35 mL/kg/day (baseline) + extra for exercise. Also shows cups (US) and fl oz equivalents.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

kg
min

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Baseline = weight_kg × 33 mL; +500 mL per 30 min exercise

In depth

Estimates recommended daily fluid intake: ≈ 30–35 mL/kg/day (baseline) + extra for exercise. Also shows cups (US) and fl oz equivalents.