Medication Dosage Calculator
Also: Tylenol, Acetaminophen, Ibuprofen, Advil, Motrin, Zyrtec
Easily determine the right dose of acetaminophen (Tylenol) or ibuprofen (Motrin, Advil) for your child’s weight.
For Zyrtec, see this dosage guide. (Also listed under “Z” in the Resource Guide.)
For infants under 6 pounds, check with your doctor.
| Child's Weight | Medication | Dose |
|---|---|---|
| 6-11 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 1.25 mL |
| 12-17 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 2.5 mL |
| 18-23 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 3.75 mL |
| 24-35 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 5 mL |
| 36-47 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 7.5 mL |
| 48-59 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 10 mL |
| 60-71 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 12.5 mL |
| 72-95 lbs | Acetaminophen Syrup 160 mg/5mL (such as Children’s Tylenol Oral Suspension) | 15 mL |
| 24-35 lbs | Chewable Acetaminophen Tablets 160 mg (such as Children’s Tylenol Chewable Tablets) | 1 tablet |
| 36-47 lbs | Chewable Acetaminophen Tablets 160 mg (such as Children’s Tylenol Chewable Tablets) | 1.5 tablets |
| 48-59 lbs | Chewable Acetaminophen Tablets 160 mg (such as Children’s Tylenol Chewable Tablets) | 2 tablets |
| 60-71 lbs | Chewable Acetaminophen Tablets 160 mg (such as Children’s Tylenol Chewable Tablets) | 2.5 tablets |
| 72-95 lbs | Chewable Acetaminophen Tablets 160 mg (such as Children’s Tylenol Chewable Tablets) | 3 tablets |
| 48-59 lbs | Adult Acetaminophen Tablets 325 mg (such as Tylenol Regular Strength) | 1 tablet |
| 60-71 lbs | Adult Acetaminophen Tablets 325 mg (such as Tylenol Regular Strength) | 1 tablet |
| 72-95 lbs | Adult Acetaminophen Tablets 325 mg (such as Tylenol Regular Strength) | 1.5 tablets |
| 96 lbs or more | Adult Acetaminophen Tablets 325 mg (such as Tylenol Regular Strength) | 2 tablets |
| 12-17 lbs | Ibuprofen Infant Drops 50 mg/1.25 mL (such as Infant’s Motrin Oral Suspension Drops) | 1.25 mL |
| 18-23 lbs | Ibuprofen Infant Drops 50 mg/1.25 mL (such as Infant’s Motrin Oral Suspension Drops) | 1.875 mL |
| 24-35 lbs | Ibuprofen Infant Drops 50 mg/1.25 mL (such as Infant’s Motrin Oral Suspension Drops) | 2.5 mL |
| 36-47 lbs | Ibuprofen Infant Drops 50 mg/1.25 mL (such as Infant’s Motrin Oral Suspension Drops) | 3.75 mL |
| 48-59 lbs | Ibuprofen Infant Drops 50 mg/1.25 mL (such as Infant’s Motrin Oral Suspension Drops) | 5 mL |
| 12-17 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 2.5 mL |
| 18-23 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 4 mL |
| 24-35 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 5 mL |
| 36-47 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 7.5 mL |
| 48-59 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 10 mL |
| 60-71 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 12.5 mL |
| 72-95 lbs | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 15 mL |
| 96 lbs or more | Ibuprofen Liquid 100 mg/5 mL (such as Children’s Motrin Oral Suspension) | 20 mL |
| 48-59 lbs | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 2 tablets |
| 60-71 lbs | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 2.5 tablets |
| 72-95 lbs | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 3 tablets |
| 96 lbs or more | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 4 tablets |
| 24-35 lbs | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 1 tablet |
| 36-47 lbs | Chewable Ibuprofen Tablets 100 mg (such as Children’s Motrin Chewables) | 1.5 tablets |
| 48-59 lbs | Adult Ibuprofen Tablets 200 mg (such as Motrin IB or Advil) | 1 tablet |
| 60-71 lbs | Adult Ibuprofen Tablets 200 mg (such as Motrin IB or Advil) | 1 tablet |
| 72-95 lbs | Adult Ibuprofen Tablets 200 mg (such as Motrin IB or Advil) | 1.5 tablets |
| 96 lbs or more | Adult Ibuprofen Tablets 200 mg (such as Motrin IB or Advil) | 2 tablets |
Important Instructions
- Always read and follow the label instructions.
- Whenever possible, use the dosing device that came with the product. Syringes and droppers are more accurate than teaspoons.
- If you use a teaspoon, it should be a measuring spoon. Regular spoons are not reliable.
- 2.5 mL = 1/2 teaspoon
- 4 mL = 3/4 teaspoon
- 5 mL = 1 level teaspoon
- 7.5 mL = 1.5 teaspoons
Acetaminophen (Tylenol)
- 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.
- Source: HealthyChildren.org
Ibuprofen (Advil, Motrin)
- 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.
- Source: HealthyChildren.org
Cetirizine (Zyrtec)


