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Tylenol Dosage Calculator by weight. Find the right dose in mg and mL for kids using weight and product strength.
| Weight | Age | Dose (mL) | Dose (mg) |
|---|---|---|---|
| Under 24 lb | Under 2 years | Ask 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 |
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.
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.
| 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.
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.
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.
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.
Yes. The label says to use weight when possible.
For the 160 mg per 5 mL liquid, the label gives 5 mL.
Multiply kg by 2.20462.
The tool flags children under 2 years or under 24 lb for a health care check.
It depends on the product label and the child’s weight. Don’t guess a mg/kg dose.