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Pediatric Acetaminophen Dose Calculator

Weight-based dose at 10-15 mg/kg q4-6h.

Compute the weight-based acetaminophen dose for a child using the standard 10-15 mg/kg per dose, every 4-6 hours, with a daily cap of 75 mg/kg or 4000 mg, whichever is lower.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

kg
mg/kg

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

Per dose = wt · 12.5 mg/kg (range 10-15). Daily cap = min(wt · 75, 4000) mg.

In depth

Compute the weight-based acetaminophen dose for a child using the standard 10-15 mg/kg per dose, every 4-6 hours, with a daily cap of 75 mg/kg or 4000 mg, whichever is lower.