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Safe Medication Dose by Weight Calculator

Dose = weight_kg × mg_per_kg — weight-based dosing.

Calculates a weight-based medication dose (e.g. mg/kg) and checks it against a maximum dose ceiling. Used for paediatric dosing and weight-sensitive medications.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

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

Dose = weight_kg × dose_per_kg; if > max_dose, use max_dose

In depth

Calculates a weight-based medication dose (e.g. mg/kg) and checks it against a maximum dose ceiling. Used for paediatric dosing and weight-sensitive medications.