Free Paracetamol Dosage Calculator

Pediatric Paracetamol Dosage Calculator

This weight-based paracetamol calculator determines the appropriate paracetamol dose for children quickly and reliably. Rather than manually computing the correct amount, you simply enter your child's weight, and the tool applies standard pediatric dosing recommendations. It serves as a practical resource for parents, caregivers, and healthcare professionals seeking to verify the safe paracetamol dose for children according to the latest guidelines.

Paracetamol Dosing Guidelines by Weight

For children over three months of age, the generally recommended single dose of paracetamol is 10 to 15 milligrams per kilogram of body weight. This dose can be repeated every four to six hours, with a maximum of four administrations per 24-hour period. The upper limit for total daily intake is 60 mg per kilogram. These guidelines apply to both oral liquids and rectal suppositories; research confirms that the antipyretic effect of oral and rectal paracetamol is comparable at equivalent doses, so the same dosing range is used for both forms.

If a child's fever or pain persists despite proper paracetamol use, alternating with ibuprofen may be an option—but only after consulting a pediatrician. It is critical never to exceed the maximum paracetamol dose for a child, as doing so could lead to liver toxicity.

How the Children's Paracetamol Calculator Works

The calculation is straightforward: the single dose equals the child's weight multiplied by 15 mg. For instance, a 20-kilogram child would receive a single dose of

$$20\ \text{kg} \times 15\ \text{mg/kg} = 300\ \text{mg}$$

The maximum daily amount for the same child is

$$20\ \text{kg} \times 60\ \text{mg/kg} = 1200\ \text{mg}.$$

Since most pediatric paracetamol products are liquid suspensions, it is essential to check the concentration on the bottle (usually expressed in mg per mL). The calculator outputs the dose in milligrams; to find the corresponding volume in milliliters, divide the dose by the concentration. For example, if the suspension strength is 120 mg per 5 mL (24 mg/mL), a 300 mg dose corresponds to $300 \div 24 = 12.5\ \text{mL}$. Always use the measuring device (cup, syringe, or spoon) that comes with the medication—never an ordinary kitchen spoon, as they vary in size and can lead to inaccurate dosing.

Important Considerations for Infant Paracetamol Dosage

Infants and toddlers are especially vulnerable to dosing errors because of their low body weight. Precise weight measurement is crucial. If your child's weight is unknown, consult a healthcare provider before using this or any other dosing guide. The calculator is designed for children with normal liver and kidney function; for those with underlying conditions, medical guidance is necessary. Additionally, be aware of other medications that may contain paracetamol, to avoid unintentional overdose.

Disclaimer

This tool is intended for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before administering any medication to a child. The author and distributor of this calculator assume no liability for any outcomes resulting from its use.