Paracetamol Dosage Calculator
Calculate a weight-based paracetamol dose and convert it to the correct liquid volume for common suspension concentrations.
Paracetamol (PCM) dose recommendation is typically 10–15 mg/kg per dose for children.
This calculator uses 15 mg/kg per dose every 6 hours, with a maximum of 4 doses in 24 hours.
Details
Avoid other paracetamol-containing products. Seek clinical advice for infants <2 months, liver disease, pregnancy, or overdose concerns.
Disclaimer: Educational tool — not a substitute for clinical judgment.
Frequently Asked Questions
How is the paracetamol dose calculated?
This calculator uses 15 mg/kg per dose and converts the result into millilitres according to the selected suspension concentration.
How often can paracetamol be given?
The calculator is set for dosing every 6 hours, up to four doses within 24 hours.
Why must the suspension concentration be checked?
Different paracetamol liquids contain different amounts of medicine in each millilitre. Selecting the wrong concentration can produce an incorrect dose volume.
What daily maximum does this calculator use?
It uses the lower of 60 mg/kg/day or 4,000 mg/day, with a maximum of 1,000 mg per dose.
When should clinical advice be obtained?
Seek clinical advice for infants younger than two months, children with liver disease, very low body weight, persistent symptoms, accidental overdose, or uncertainty about the product strength.
References
- British National Formulary for Children. Paracetamol: oral dosing guidance for pain and fever in children.
- World Health Organization. Pocket Book of Hospital Care for Children.
- American Academy of Pediatrics. Acetaminophen dosing guidance for children.