Ibuprofen Dosage
Free ibuprofen dosage calculator for children — get safe mg/kg dose, maximum daily limit, and liquid tablet amounts by weight, based on AAP pediatric guidelines.
Ibuprofen is not recommended for infants under 6 months.
About This Calculator
The Ibuprofen Dosage Calculator helps parents and caregivers determine the safe and appropriate dose of ibuprofen for their child based on body weight. Ibuprofen (Advil, Motrin, Nurofen) is a non-steroidal anti-inflammatory drug (NSAID) used to reduce fever and relieve mild to moderate pain in children.
The calculator follows the American Academy of Pediatrics (AAP) guidelines: a recommended single dose of 5–10 mg per kg of body weight, administered every 6 to 8 hours, with a maximum daily dose of 40 mg per kg. The absolute maximum single dose is 400 mg and the absolute maximum daily dose is 1200 mg, even for adults. This tool also provides dosing volumes for common ibuprofen formulations: infant drops (50 mg/1.25 mL), children's suspension (100 mg/5 mL), chewable tablets (100 mg), and junior strength tablets (200 mg).
Ibuprofen should always be given with food or milk to reduce stomach upset. Do not give more than 4 doses in 24 hours and always use the measuring device that comes with the medication — kitchen spoons are not accurate for dosing.
Regional Notes
India: Common brands include Brufen, Ibugesic, and Combiflam. Infant drops (50 mg/1.25 mL) and suspension (100 mg/5 mL) are widely available. Always check the concentration on the package before dosing.
United States: Common brands include Advil, Motrin, and generic ibuprofen. Infant drops (50 mg/1.25 mL) and children's suspension (100 mg/5 mL) are standard. The FDA advises against giving ibuprofen to infants under 6 months.
United Kingdom: Common brands include Nurofen for Children and Calprofen. Available as suspension (100 mg/5 mL) and oral syringes for accurate dosing. The NHS recommends waiting at least 6 hours between doses.
Frequently Asked Questions
How much ibuprofen can I give my child based on weight?
The maximum single dose of ibuprofen for children is 10 mg per kg of body weight, and the maximum daily dose is 40 mg per kg. For example, a 20 kg child can have up to 200 mg per dose and 800 mg per day. Always use the lowest effective dose and consult your pediatrician.
What is the minimum age for giving ibuprofen to a child?
In the US, ibuprofen should not be given to infants under 6 months of age due to safety concerns. In the UK and India, similar precautions apply and parents should consult a pediatrician before administering ibuprofen to very young infants. Always check the product label and consult your healthcare provider.
How often can I give ibuprofen to my child?
Ibuprofen can be given every 6 to 8 hours as needed, with a maximum of 4 doses in 24 hours. Do not exceed the maximum daily dose of 40 mg per kg of body weight (1200 mg absolute maximum for adults and children over 30 kg). Space doses at least 6 hours apart.
Can I alternate ibuprofen and paracetamol for my child?
Yes, alternating ibuprofen and paracetamol (acetaminophen) can be an effective strategy for managing fever and pain. However, you must keep track of both medications separately and never exceed the recommended dose of either. Always consult your pediatrician before alternating medications.
What is the difference between infant drops and children's suspension?
Infant drops are more concentrated (50 mg per 1.25 mL) and come with a dropper for precise dosing of smaller children. Children's suspension (100 mg per 5 mL) is less concentrated and typically used for older children who need larger volumes. Always use the dosing device that comes with the product.
What are the side effects of ibuprofen in children?
Common side effects include upset stomach, heartburn, nausea, and drowsiness. Serious side effects like stomach bleeding, kidney problems, and allergic reactions are rare but possible. Do not give ibuprofen to a child who is dehydrated, vomiting, or has a history of stomach ulcers or kidney disease.
Is ibuprofen or paracetamol better for children?
Ibuprofen is generally better for inflammation and provides longer-lasting fever relief (6–8 hours vs 4–6 hours for paracetamol). Paracetamol is gentler on the stomach and can be used from 2 months of age. Both are effective for fever and pain. The choice depends on your child's age, condition, and medical history.
What should I do if I accidentally give my child too much ibuprofen?
If you suspect an ibuprofen overdose, contact your local poison control center or seek emergency medical attention immediately. Symptoms of overdose may include nausea, vomiting, stomach pain, drowsiness, headache, and rapid eye movements. Have the medication bottle ready when you call.