Water Intake Calculator

Get a simple daily hydration target based on your weight and activity.

Runs in your browser — nothing is uploaded
Units
Climate

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Informational only — not medical advice. Talk to a doctor or registered dietitian about your health.

How to use Water Intake Calculator

  1. Enter your weight.
  2. Add daily exercise and climate.
  3. Read your target in liters and glasses.

Questions

Does coffee or food count?

Yes — all drinks and water-rich foods contribute. Pale yellow urine is a simple sign you’re drinking enough.