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Tylenol Dosage Calculator

Tylenol Dosage Calculator by weight. Find the right dose in mg and mL for kids using weight and product strength.

Key Safety Point: Never calculate Tylenol dosage from weight alone without checking the actual product label — different acetaminophen products have different strengths and instructions. Do not combine Tylenol with any other medicine that also contains acetaminophen. For children under 2 years, ask a healthcare provider rather than using a general chart.
Note: This calculator uses the official Children's TYLENOL Oral Suspension weight-based dosing chart (160 mg per 5 mL) rather than an independently computed mg/kg formula, matching how current TYLENOL labeling is structured. If your bottle's concentration is different, select "Custom concentration" and enter the exact numbers printed on your bottle.
years
Used only to flag the under-2 "ask a doctor" rule. Weight is used to select the dose whenever possible.
Liquid Dose (mL) = Labeled Dose (mg) ÷ Concentration (mg/mL), where the labeled mg dose comes from the official weight-based TYLENOL chart.
Children's TYLENOL Oral Suspension Dosing Chart (160 mg/5 mL)
WeightAgeDose (mL)Dose (mg)
Under 24 lbUnder 2 yearsAsk a doctor
24–35 lb 2–3 years 5.0 mL 160 mg
36–47 lb 4–5 years 7.5 mL 240 mg
48–59 lb 6–8 years 10.0 mL 320 mg
60–71 lb 9–10 years 12.5 mL 400 mg
72–95 lb 11 years 15.0 mL 480 mg
Source: current Children's TYLENOL Oral Suspension Drug Facts label. Always confirm against the exact bottle in hand — formulations and charts can differ by product and change over time.
Published by a2zcalculators Team · 6 views

A Tylenol Dosage calculator can help you find a dose from a child’s weight. Our tool uses a weight chart for kids, which can also be used to determine Height and Weight Percentile. It can also change a dose from mg to mL.

Tylenol contains acetaminophen. Always check the bottle first. The dose must match the product strength. For the common 160 mg per 5 mL liquid, the label gives set doses by weight. It says to ask a doctor for a child under 24 lb or under 2 years.

Tylenol Dosage Formula

Our calculator first finds the child’s weight in pounds. If you enter kg, it uses:

Weight in lb = Weight in kg × 2.20462

It then finds the right weight range. The dose comes from the label chart.

For a 160 mg per 5 mL liquid:

160 ÷ 5 = 32 mg/mL

The liquid dose formula is:

Dose in mL = Dose in mg ÷ Strength in mg/mL

If you use a custom strength, the tool finds it with:

Strength = mg ÷ mL

Then it uses the same dose formula.

Tylenol Dose Chart

Child weight Labeled dose
24–35 lb 5 mL
36–47 lb 7.5 mL
48–59 lb 10 mL
60–71 lb 12.5 mL
72–95 lb 15 mL

These doses match the current Children’s TYLENOL label for 160 mg per 5 mL.

How to Use Online Tylenol Dosage Calculator

  1. Enter the child’s weight.
  2. Add the child’s current weight.
  3. Pick lb or kg.
  4. The tool can convert kg to lb.
  5. Choose the liquid strength.
  6. Use the standard strength or add the bottle strength.
  7. Check the result.
  8. The tool shows the dose in mg and mL.
  9. Check the bottle label.
  10. Make sure the result fits your product label before use.

Example Tylenol Dosage Calculation

Say a child weighs 30 lb.

The tool finds the 24–35 lb range. The label dose is 5 mL.

The liquid has 160 mg in 5 mL.

160 ÷ 5 = 32 mg/mL

Now find the dose in mg:

5 × 32 = 160 mg

So the dose is:

160 mg = 5 mL

The label says to repeat a dose every 4 hours if needed. Do not give more than 5 doses in 24 hours. Use the dosing device that comes with the product.

Tylenol Dosage for Infants and Kids

A tylenol dosage calculator for kids should use weight when the label allows it. Our tool does not choose a dose for a child under 24 lb. It also flags a child under 2 years for a health care check.

A tylenol dosage calculator for infants needs extra care. Don’t use an old “infant drops” dose from memory. Check the exact bottle. Current single-ingredient acetaminophen liquids often use 160 mg per 5 mL, but the product label still matters.

A tylenol dosage calculator kg tool is mainly a unit aid. The dose still comes from the right weight range.

Never mix two products that both contain acetaminophen, as this can lead to an Overdose. Use the dosing tool that comes with the product.

Final Verdict

Our Tylenol Dosage calculator makes a hard task simple. It uses weight, a label dose, and liquid strength. It then gives the dose in mg and mL.

It’s useful for quick checks. Still, the bottle label is the final guide. Ask a health care provider if the child is too young, too small, or outside the tool range.

FAQs

Is Tylenol dosed by weight?

Yes. The label says to use weight when possible.

What is the Tylenol dose for 24–35 lb?

For the 160 mg per 5 mL liquid, the label gives 5 mL.

How do I convert kg to lb?

Multiply kg by 2.20462.

Can I use this for infants?

The tool flags children under 2 years or under 24 lb for a health care check.

What is acetaminophen dosage by weight?

It depends on the product label and the child’s weight. Don’t guess a mg/kg dose.