Children's Tylenol Dose Finder

Acetaminophen (Tylenol®) Calculator

Professional Pediatric Dosing Guide

Child’s Weight (lbs)

Medication Formulation

Individual Dose: —

Frequency	Max (24h)	Wait Time
Every 4-6 Hours	5 Doses	Minimum 4 Hours

Verify: Always check your product’s “Drug Facts” label for concentration.

Tools: Use the syringe provided with the bottle; kitchen spoons are inaccurate.

Fever: Call a doctor if fever exceeds 102.2°F (39°C) or lasts >3 days.

Age: For infants under 3 months, consult a doctor before dosing.

This tool uses the $15\text{ mg/kg}$ clinical standard. Calculations are for educational purposes only.

The Core Golden Rule: 160 mg / 5 mL

In the United States, all liquid acetaminophen for children—both Infants’ Tylenol and Children’s Tylenol—shares the exact same liquid concentration:

160\text{ mg of acetaminophen per every } 5\text{ mL of liquid}

Critical Warning: Older formulations of Infants’ Tylenol were much stronger ( $80\text{ mg} / 0.8\text{ mL}$ ). Always check your bottle to ensure it reads $160\text{ mg}$ per $5\text{ mL}$ before using this guide, and always use the syringe or dosing cup that came in the exact same box to measure. Never use a kitchen spoon.

Dosage Finder Chart (Weight-Based)

You can repeat a safe dose every 4 to 6 hours as needed. Do not give more than 5 doses within a 24-hour period.

Child’s Weight (lbs)	Child’s Age (approx.)	Liquid Dose (mL)	Strength (mg)
Under 12 lbs	Under 12 weeks	Consult doctor	Consult doctor
12 – 17 lbs	4 – 11 months	2.5 mL	80 mg
18 – 23 lbs	12 – 23 months	3.75 mL	120 mg
24 – 35 lbs	2 – 3 years	5 mL	160 mg
36 – 47 lbs	4 – 5 years	7.5 mL	240 mg
48 – 59 lbs	6 – 8 years	10 mL	320 mg
60 – 71 lbs	9 – 10 years	12.5 mL	400 mg
72 – 95 lbs	11 years	15 mL	480 mg

Key Safety Checklist

Under 12 Weeks: Always call your pediatrician for a precise dose before administering acetaminophen to a newborn or infant under 3 months old. A fever in a young infant requires immediate medical evaluation.

Check Other Medications: Many over-the-counter cold and cough syrups also contain acetaminophen. Check all active ingredient labels carefully to avoid an accidental, dangerous overdose.

Know the Limits: Stop using the medication and consult a pediatrician if your child’s fever lasts more than 3 days, or if their pain lasts more than 5 days.