💊 Weight-Based Dose Calculator
Weight-based dosing converts a mg/kg target into a single dose, with an optional ceiling to prevent exceeding an adult maximum.
Weight-Based Dose Calculator
Dose (mg/kg)
Weight (kg)
Max single dose (cap) (mg)
When to use
Enter the mg/kg dose and patient weight, plus an optional per-dose cap; the tool returns the capped single dose and the uncapped value.
How it works
Single dose = dose (mg/kg) × weight (kg); if a cap is provided and exceeded, the dose is limited to the cap.
Key points
- Always reconcile the result against the label's usual and maximum dose, total daily dose, and dosing interval before administration (original synthesis · not guideline verbatim).
- Formulation concentration and required dilution must be checked separately, especially for high-alert drugs.
- Neonates and preterm infants follow distinct dosing standards and are not covered by simple mg/kg scaling.
References
- Institute for Safe Medication Practices (ISMP). Pediatric weight-based dosing safety resources.
- WHO. Pocket Book of Hospital Care for Children, 2nd ed.
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.