Ibuprofen Dose Calculator

Paediatric ibuprofen is dosed at about 10 mg per kg of body weight per dose, every 6–8 hours as needed, with a maximum of 40 mg/kg (and usually no more than 4 doses) in 24 hours. The calculator converts that mg dose into millilitres for the syrup strength you select.

Weight gives a far more accurate paediatric dose than age. Always dose by the child's current weight where possible.

Ibuprofen is generally not recommended for babies under 3 months or under 5–6 kg, and should be avoided in dehydration, chickenpox, or known kidney problems. For young infants, check with your paediatrician and consider paracetamol instead.

They can sometimes be alternated under medical advice for a high fever, but they should not be given at the same time without a doctor's guidance. Never exceed the maximum dose of either medicine.

Seek urgent care for a baby under 3 months with fever, or any child with breathing difficulty, severe drowsiness, repeated vomiting, dehydration, a seizure, or suspected overdose. This tool is informational and does not replace a clinician.