Weight-Based Dose

Calculate a weight-based medication dose (mg/kg).

Weight

Dose (mg per kg)Max single dose (mg, optional)Leave blank if there's no cap

Educational estimate only — not a diagnosis. Values are calculated in your browser and never stored. Discuss your results with a licensed clinician.

Frequently asked questions

Is this safe to dose real medicine?

This is general mg/kg math for education only. Always confirm the correct drug, dose, frequency and product with a pharmacist or doctor before giving any medicine.

What does the max dose do?

If you enter a single-dose cap, the result won't exceed it — helpful for medicines that have a ceiling regardless of weight.

Embed this calculator

Add this free calculator to your own website — copy the code below.

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