Children's Acetaminophen (Tylenol) Dosage Calculator | KinToolkit

Find children's acetaminophen label directions using a weight or age range and matching the bottle strength. This educational calculator does not replace the medicine label or advice from a healthcare professional.

Enable JavaScript to use the interactive calculator. Read the reference tables and sources below without JavaScript.

How this acetaminophen calculator works

Match the Children’s or Infants’ Tylenol bottle and its printed concentration before choosing a range. The calculator shows label directions for the selected bottle; it does not determine whether acetaminophen is appropriate for your child.

Does this tool use weight or age?

The Tylenol flow starts with weight ranges and offers an age-range fallback. Read the age assumptions shown in the tool and the full manufacturer guidance before using the directions.

Read the manufacturer’s full guidance

Supported bottles

US liquid products supported by this calculator
BottleIngredientStrengthUses
Children’s TYLENOLAcetaminophen160 mg / 5 mLWeight or age
Infants’ TYLENOLAcetaminophen160 mg / 5 mLWeight or age

US liquid products shown here only. Do not apply these amounts to another strength, formulation or country’s product. Use the measuring device supplied with your bottle and read the full label; this page does not reproduce every warning.

Children’s TYLENOL — 160 mg / 5 mL

Use weight if known; otherwise use age. The weight and age columns are alternatives from the label, not a formula. If the child is outside the listed age range or the weight falls outside a printed band, ask a clinician. Do not interpolate.

Children’s TYLENOL — 160 mg / 5 mL
Weight (lb)Age on labelLabel amount
Under 24Under 2 yearsAsk your child’s doctor
24–352–3 years5 mL
36–474–5 years7.5 mL
48–596–8 years10 mL
60–719–10 years12.5 mL
72–9511 years15 mL

Label interval: every 4 hours while symptoms last. No more than 5 doses in 24 hours. Do not combine with another medicine containing acetaminophen.

Full TYLENOL label guidance

Infants’ TYLENOL — 160 mg / 5 mL

Use weight if known; otherwise use age. The weight and age columns are alternatives from the label, not a formula. If the child is outside the listed age range or the weight falls outside a printed band, ask a clinician. Do not interpolate.

Infants’ TYLENOL — 160 mg / 5 mL
Weight (lb)Age on labelLabel amount
Under 24Under 2 yearsAsk your child’s doctor
24–352–3 years5 mL

Label interval: every 4 hours while symptoms last. No more than 5 doses in 24 hours. Do not combine with another medicine containing acetaminophen.

Full TYLENOL label guidance

Keep another caregiver in the loop

Share this calculator so they can match their own bottle. The link contains no child details or dosage results.

How KinToolkit prepares this information

KinToolkit organizes the selected US liquid medicine labels into bottle-matching tools and reference tables. The calculator and these tables use the same range lookup, not a continuous weight formula. Manufacturer labels are the primary sources; this summary does not establish an independently validated or clinically reviewed dosing protocol.

Label sources checked: . This is a source-check date, not a clinical-review date.

Before using label directions

Verify the active ingredient, concentration and warnings on your own package. KinToolkit is an independent educational tool, not a medical professional or a substitute for your child’s clinician. The brands mentioned above are not affiliated with KinToolkit.

Sources and accessible text

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