Paracetamol Dose Calculator

Repeat dose every 4-6 hours as necessary (max 4 doses in 24 hours).

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Other Calculators and Info

Safety Information

Paracetamol comes in two liquid strengths, 120mg in 5ml and 250 mg in 5ml. This dose calculator uses 250mg in 5ml  in the first calculation.

POISONING – Paracetamol is the most common single agent involved in poisonous ingestion in young children. IF YOU BELIEVE YOUR CHILD IS POISONED CALL 111 IMMEDIATELY.

Dosing Table:

Child’s wt



5kg or less

6.5 kg

8 kg

10 kg

15 kg

20 kg

30 kg

40 kg

Ask doctor

4 ml

5 ml

6 ml

9 ml

12 ml

18 ml

25 ml

Ask doctor

2 ml

2.5 ml

3 ml

4.5 ml

6 ml

9 ml

12 ml

Usage Information:

Paracetamol is used for relief of pain. It will not cause drowsiness or cause your child to sleep. It can be used for children and babies over 3 months old. Younger babies must see the doctor.

The oral dose of paracetamol for children aged 1 month to 18 years is

  • 15 mg/kg per dose, to a maximum of 1 g per dose, every four to six hours,
  • with a maximum of 60 mg/kg daily, without exceeding 4 g daily.

For further information on paracetamol dosing, refer to the New Zealand Formulary for Children:

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Contact Info

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Phone 09 585 0188

Fax 09 585 0199

Healthlink EDI: GLENDOW

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