Step 1
Child details
Basic inputs used for calculation.
Child name
Weight (kg)
Used for mg/kg dosing.
Date of birth
Age is shown in the report.
Calpol is a paracetamol (acetaminophen) brand. This calculator is pre-set to the Calpol 250 mg/5 ml suspension commonly sold in India, but Calpol is also available as 120 mg/5 ml syrup and as paediatric drops — so check your pack and adjust the strength if it differs. Enter your child's weight for the dose in millilitres.
Check your bottle: 250 mg / 5 ml
Pre-set to Calpol 250 mg/5 ml. Calpol also comes as 120 mg/5 ml syrup and concentrated drops — match the calculator strength to your bottle.
Not for emergencies
This tool is informational and does not replace a clinician. Seek urgent care for a baby under 3 months with fever, or any child with breathing difficulty, severe drowsiness, seizures, dehydration, persistent vomiting, or suspected overdose.
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Paediatric paracetamol is dosed at about 10–15 mg per kg of body weight per dose, every 4–6 hours as needed, with a maximum of 4 doses (and ≤ 60 mg/kg) 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; age is only a rough fallback.
No more often than every 4 hours, and no more than 4 doses in 24 hours. The calculator shows an hour-by-hour timeline and enforces the 24-hour cap.
Seek urgent medical 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.
In India, Calpol suspension is commonly 250 mg/5 ml. Calpol is also sold as a 120 mg/5 ml syrup and as more concentrated paediatric drops in some markets. Always read the strength printed on your specific bottle and select it in the calculator.
At 15 mg/kg a 15 kg child needs about 225 mg per dose. With Calpol 250 mg/5 ml (50 mg/ml) that is roughly 4.5 ml. Confirm against your bottle and your paediatrician's advice.