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Dosage Calculator

Easily determine the right dose of Acetaminophen (Tylenol) or Ibuprofen (Motrin, Advil) for your infant or child’s weight.

For infants under 6 pounds, check with your doctor.

Child's WeightMedicationDosage
6-11 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		1.25 mL
12-17 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		2.5 mL
12-17 lbsIbuprofen Infant Drops 50 mg/1.25 mL
(such as Infant’s Motrin Oral Suspension Drops)		1.25 mL
12-17 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		2.5 mL
18-23 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		3.75 mL
18-23 lbsIbuprofen Infant Drops 50 mg/1.25 mL
(such as Infant’s Motrin Oral Suspension Drops)		1.875 mL
18-23 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		4 mL
24-35 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		5 mL
24-35 lbsChewable Acetaminophen Tablets 160 mg
(such as Children’s Tylenol Chewable Tablets)		1 tablet
24-35 lbsIbuprofen Infant Drops 50 mg/1.25 mL
(such as Infant’s Motrin Oral Suspension Drops)		2.5 mL
24-35 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		5 mL
36-47 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		7.5 mL
36-47 lbsChewable Acetaminophen Tablets 160 mg
(such as Children’s Tylenol Chewable Tablets)		1.5 tablets
36-47 lbsIbuprofen Infant Drops 50 mg/1.25 mL
(such as Infant’s Motrin Oral Suspension Drops)		3.75 mL
36-47 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		7.5 mL
48-59 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		10 mL
48-59 lbsChewable Acetaminophen Tablets 160 mg
(such as Children’s Tylenol Chewable Tablets)		2 tablets
48-59 lbsAdult Acetaminophen Tablets 325 mg
(such as Tylenol Regular Strength)		1 tablet
48-59 lbsIbuprofen Infant Drops 50 mg/1.25 mL
(such as Infant’s Motrin Oral Suspension Drops)		5 mL
48-59 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		10 mL
48-59 lbsChewable Ibuprofin Tablets 100 mg
(such as Children’s Motrin Chewables)		2 tablets
48-59 lbsAdult Ibuprofen Tablets 200 mg
(such as Motrin IB or Advil)		1 tablet
60-71 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		12.5 mL
60-71 lbsChewable Acetaminophen Tablets 160 mg
(such as Children’s Tylenol Chewable Tablets)		2.5 tablets
60-71 lbsAdult Acetaminophen Tablets 325 mg
(such as Tylenol Regular Strength)		1 tablet
60-71 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		12.5 mL
60-71 lbsChewable Ibuprofin Tablets 100 mg
(such as Children’s Motrin Chewables)		2.5 tablets
60-71 lbsAdult Ibuprofen Tablets 200 mg
(such as Motrin IB or Advil)		1 tablet
72-95 lbsAcetaminophen Syrup 160 mg/5mL
(such as Children’s Tylenol Oral Suspension)		15 mL
72-95 lbsChewable Acetaminophen Tablets 160 mg
(such as Children’s Tylenol Chewable Tablets)		3 tablets
72-95 lbsAdult Acetaminophen Tablets 325 mg
(such as Tylenol Regular Strength)		1.5 tablets
72-95 lbsIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		15 mL
72-95 lbsChewable Ibuprofin Tablets 100 mg
(such as Children’s Motrin Chewables)		3 tablets
72-95 lbsAdult Ibuprofen Tablets 200 mg
(such as Motrin IB or Advil)		1.5 tablets
96 lbs or moreAdult Acetaminophen Tablets 325 mg
(such as Tylenol Regular Strength)		2 tablets
96 lbs or moreIbuprofen Liquid 100 mg/5 mL
(such as Children’s Motrin Oral Suspension)		20 mL
96 lbs or moreChewable Ibuprofin Tablets 100 mg
(such as Children’s Motrin Chewables)		4 tablets
96 lbs or moreAdult Ibuprofen Tablets 200 mg
(such as Motrin IB or Advil)		2 tablets

Acetaminophen (Tylenol)

  • Always read and follow the label instructions.
  • Repeat dose every 4-6 hours while symptoms last.
  • Do not give more than 5 doses in 24 hours.
  • Do not use with any other product containing acetaminophen.
  • Use only the dosing device that came with the product.
  • Source: AAP (HealthyChildren.org)

Ibuprofen (Advil, Motrin)

  • Always read and follow the label instructions.
  • Not for use with children under 6 months of age.
  • Repeat dose every 6-8 hours as needed.
  • Do not give more than 4 doses in 24 hours.
  • Use only the dosing device that came with the product.
  • Source: AAP (HealthyChildren.org)

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