Paracetamol Dose Calculator Weight (kg) Choose Paracetamol Strength Paracetamol 120 mg/5 mL Paracetamol 250 mg/5 mL Paracetamol 240 mg/5 mL(new strength - temporary*) Dose in millilitres Dose in milligrams For ages 1 month to 18 years only. * September 2022: A new strength of liquid paracetamol (240 mg/5 mL) may be temporarily available as a result of supply issues. Calculator written by Dr Jeremy Steinberg, GP. Contact for suggestions