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Baby & Child Medicine Dosage Calculator 💊

A weight-based paracetamol or ibuprofen dose in mL, with the safe interval, daily limit and warning signs — always confirm with your doctor.

⚠️ Always dose by your child's weight, use the syringe/cup that comes with the bottle, and confirm the amount with your doctor or pharmacist. This is a general guide, not a prescription.

Medicine

For diarrhoea, think ORS + zinc

ORS isn't weight-dosed like medicine — after each loose stool give about 50–100 mL (under 2 years) or 100–200 mL (2 years and older), and continue feeding. Ask your doctor about zinc for 14 days. Seek care for signs of dehydration.

General guidance only — not medical advice or a prescription. Doses follow standard weight-based paracetamol (15 mg/kg) and ibuprofen (10 mg/kg) dosing, but your doctor's or pharmacist's advice for your child comes first. Never exceed the daily limit or combine products with the same medicine. Calculated on your device.

Medically reviewed by Dr. Prachi · Physician

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Dosing by weight, safely

Children's fever and pain medicines are dosed by body weight, not age — a big two-year-old and a small one need different amounts. This tool uses standard weight-based dosing and then converts it to mL for the exact syrup you have at home. Always use the measuring syringe or cup that comes with the bottle (a kitchen spoon is not accurate), and never combine two products that both contain the same medicine.

A guide, not a prescription

This calculator is here to help you understand a typical dose and avoid common mistakes — it does not replace your doctor or pharmacist, who should confirm the dose for your child, especially for infants, ongoing symptoms, or if your child has any health conditions. To keep the rest of your baby's health on track, see our vaccination tracker and growth chart.

FAQs

How much paracetamol or ibuprofen can I give my child?
Paediatric doses are worked out by weight: paracetamol is about 15 mg/kg per dose (every 4–6 hours, up to 4 doses a day) and ibuprofen about 10 mg/kg per dose (every 6–8 hours, up to 3 doses a day). The calculator converts that into mL for your syrup's strength — but always confirm the amount with your doctor or pharmacist.
Why does the syrup strength matter?
The same dose in mg is a different number of mL depending on the syrup — for example paracetamol 120 mg/5 mL versus 250 mg/5 mL (double strength) or infant drops at 100 mg/mL. Giving the mL for the wrong strength is a common cause of accidental overdose, so always pick your exact bottle.
Can I give medicine to a newborn?
For a baby under 3 months, any fever needs a doctor, and medicine and dose must be decided by them — please don't self-dose at this age. Ibuprofen in particular is not recommended under 3 months.
When should I see a doctor instead?
Seek care for a baby under 3 months with fever, trouble breathing, signs of dehydration, unusual drowsiness or a fit, a non-fading rash or stiff neck, or a fever lasting more than 3 days. Medicine treats discomfort — it doesn't replace a check-up when something feels wrong.