Can I give Tylenol to infants?

Acetaminophen can be given to infants over 3 months of age. For infants under 3 months, consult a pediatrician first. Always use infant-specific formulations with the included dosing device.

What is the maximum safe dose of Tylenol?

For adults, the maximum single dose is 1000mg and the maximum daily dose is 4000mg (3000mg for those with liver concerns). For children, do not exceed 75mg/kg/day or 5 doses in 24 hours.

How long should I wait between Tylenol doses?

Wait at least 4-6 hours between doses. Do not give more than 5 doses in 24 hours. If fever or pain persists beyond 3 days, consult a healthcare provider.

General Dose Math

Tylenol Dosage by Weight Calculator

Calculate the correct Tylenol (acetaminophen) dose based on body weight. Safe dosing for children and adults using mg/kg guidelines.

Tylenol by Weight

Calculate the correct Tylenol (acetaminophen) dose based on body weight. Safe dosing for children and adults using mg/kg guidelines.

Body WeightPatient's body weight

Dose per kgStandard pediatric dose is 10-15 mg/kg

mg/kg

FormulationSelect the Tylenol product you have

This calculator provides estimates based on standard dosing guidelines. Do not exceed 5 doses in 24 hours. Maximum daily dose is 75mg/kg/day (up to 4000mg for adults). Always read product labels and consult a healthcare provider for children under 2 years or if symptoms persist.

Important Disclaimer

About This Calculator

Tylenol (acetaminophen/paracetamol) is one of the most commonly used over-the-counter medications for pain and fever. Proper dosing based on body weight is essential for safety and effectiveness, especially in children. This calculator uses the standard 10-15 mg/kg dosing guideline recommended by pediatricians.

How It Works

Enter the patient's weight and select the dosing intensity (10-15 mg/kg). The calculator computes the appropriate dose in milligrams and converts it to the volume of liquid medication. For safety, single doses are capped at 1000mg and daily doses at 4000mg (or 75mg/kg/day for children).

Frequently Asked Questions

The standard pediatric dose of acetaminophen is 10-15 mg/kg per dose, given every 4-6 hours as needed. Do not exceed 5 doses in 24 hours or 75 mg/kg/day.

Clinical Review

Dr. Igor I. Bussel, MD

Board-Certified Ophthalmologist

Dr. Igor I. Bussel is a board-certified ophthalmologist and fellowship-trained surgeon affiliated with the University of California, Irvine (UCI), the Gavin Herbert Eye Institute, and the UCI School of Medicine.

Last Updated: 2025-01-05

Sources & Guidelines

Medically Reviewed

Evidence-Based

Updated 2025-01-05

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References

Reviewed by: Clinical Review Team (PharmD)

Last updated: 2025-01-05