Children's Motrin Calculator
For Berry Flavor & Dye-Free Liquid (100mg/5mL)
Calculation Methodology
Give mL every 6-8 hours
For oral administration, round to the nearest 0.1 mL. Use the provided oral syringe for precision.
How to Dose Children's Motrin
Children's Motrin is commonly used for fevers and aches. The standard liquid concentration for "Children's" Motrin is 100mg/5mL. This is different from the concentrated Infant Drops.
Important Safety Rules
- Shake Well: Ibuprofen prevents settling. Always shake the bottle before measuring.
- Use the Cup: The 100mg/5mL bottles usually come with a dosage cup. A syringe is more accurate if you have one.
- Don't Confuse with Tylenol: Motrin/Ibuprofen is dosed differently (every 6-8 hours, not 4).
Medical Fact
"The dose is 10mg/kg. This usually works out to about 1 teaspoon (5mL) for every 22lbs of body weight, but use the calculator above for exact numbers."
Parent FAQs
Motrin vs. Advil?
They are the same active ingredient: Ibuprofen. If the concentration on the box is 100mg/5mL, the dosing is identical.
Can I give this to my 3 month old?
NO. Ibuprofen is not recommended for infants under 6 months. Use Acetaminophen (Tylenol) instead for this age group, after consulting your doctor.
Ibuprofen Forms
- Children's Motrin/Advil 100mg/5mL
- Infant Drops 50mg/1.25mL
- Junior Tablets 100mg tab
Did you know?
Antibiotic suspensions are often "reconstituted" by the pharmacist with water. Once mixed, most only last for 10-14 days and many require refrigeration. Check your bottle's storage instructions!
Related Tools
Motrin Reference (100mg/5mL)
Correct for Children's Liquid only. NOT for Drops.
| Weight (kg) | Single Dose (5mg/kg) | Single Dose (10mg/kg) |
|---|---|---|
| 10kg Child (22 lbs) | ||
| 10 kg | 50mg (2.5 mL) | 100mg (5.0 mL) |
| 15kg Child (33 lbs) | ||
| 15 kg | 75mg (3.8 mL) | 150mg (7.5 mL) |
| 20kg Child (44 lbs) | ||
| 20 kg | 100mg (5.0 mL) | 200mg (10.0 mL) |
Clinical Review
Dr. Igor I. Bussel is a board-certified ophthalmologist and fellowship-trained surgeon affiliated with the University of California, Irvine (UCI), the Gavin Herbert Eye Institute, and the UCI School of Medicine.
Sources & Guidelines
Try a calculation like "250mg amoxicillin 400mg/5ml"
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Try a calculation like "250mg amoxicillin 400mg/5ml"
or search for any calculator
No quick matches.