Infant Tylenol Dosage Calculator

Calculate the safe dosage of infant Tylenol (acetaminophen) based on weight and age. Follows AAP guidelines (10-15 mg/kg every 4-6 hours, max 5 doses/day).

isCalculator Editorial Team Published by:
Reviewed by: Review Board
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How to use this tool?

How to Use the Infant Tylenol Dosage Calculator

  1. Enter the infant's weight in kilograms (kg) or pounds (lb) using the dropdown. Weight must be greater than 0.
  2. Enter the infant's age in months or years. This calculator is for infants up to 24 months (2 years).
  3. Click "Calculate Dosage".
  4. Review the recommended single dose (midpoint of 10–15 mg/kg range) and the full dosage breakdown below.
  5. Important notes:

    • Always consult a pediatrician before giving medication.
    • Give every 4–6 hours as needed, with a maximum of 5 doses in 24 hours.
    • Weight conversions (lb to kg) are done automatically.

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Frequently Asked Questions

The recommended dosage is 10-15 mg per kilogram of body weight every 4-6 hours, not exceeding 5 doses (75 mg/kg) in 24 hours.

This calculator is designed for infants up to 24 months. For older children, consult a pediatrician or use a children's dosage calculator.

The calculator automatically converts pounds to kilograms (1 lb = 0.4536 kg). Simply select 'lb' from the weight unit dropdown.

Reviewed by Experts

Anita Leonor F. Jaime

Anita Leonor F. Jaime

Physician

Dedicated Occupational Physician with experience in Occupational Medicine and emergency care. Proficient in health assessments, hygiene management, and compliance with safety standards. Committed to promoting occupational health and improving workplace quality of life.

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Dr. Leonilde Melgaço

Dr. Leonilde Melgaço

Medical Doctor

Primary health care and Assistant Physician in Occupational Medicine

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Dr. Zouheir Ballouk

Dr. Zouheir Ballouk

Doctor

Medical Doctor Phd

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Layla Nesr

Layla Nesr

Nutritionist

Bachelor’s Degree, BS in Nutrition and Dietetics

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Neil Chaves

Neil Chaves

Doctor

Dentist

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