Pediatric Dosing Calculator — Free Online Calculator
Input
Standard dosing: 25–50 mg/kg/day divided q8h
Amoxicillin — Single Dose (q8h)
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About This Calculator
The Pediatric Dosing Calculator provides weight-based dosing for common pediatric medications. All doses are calculated using standard mg/kg dosing from established guidelines. The calculator accounts for maximum daily and single dose limits. Always verify doses with current pharmacology references and consider patient-specific factors such as renal/hepatic function, allergies, and age restrictions.
Formula
Interpretation
| Medication | Standard Dose | Max Daily |
|---|---|---|
| Amoxicillin | 25–50 mg/kg/day q8h | 1500 mg |
| Ibuprofen | 5–10 mg/kg q6-8h | 1200 mg |
| Acetaminophen | 10–15 mg/kg q4-6h | 2400 mg |
| Prednisolone | 1–2 mg/kg/day | 60 mg |
References
- Harriet Lane Handbook: A Manual for Pediatric House Officers. 23rd ed. Elsevier; 2024.
- American Academy of Pediatrics. Medication Dosing Guidelines.
Frequently Asked Questions
Should I use actual or ideal body weight for dosing in obese children?
For most medications, use actual body weight but check against maximum dose limits. For some drugs (aminoglycosides, chemotherapy), adjusted or ideal body weight may be more appropriate. Obese children should not exceed adult maximum doses. Consult a pediatric pharmacist for complex cases.
What if the calculated dose exceeds the adult maximum?
Never exceed the adult maximum dose regardless of weight. This calculator automatically caps at maximum daily doses. For example, acetaminophen should not exceed 2400 mg/day in children (some references cite 75 mg/kg/day). Always verify with current references.
Can I use these doses for neonates?
No. Neonatal dosing is different from pediatric dosing due to immature hepatic and renal function. Neonates require specialized dosing (often per kg but at different mg/kg) and different dosing intervals. Always use neonatal-specific references for patients under 1 month.
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⚠ Medical Disclaimer
This tool is for educational and informational purposes only. It is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for clinical decisions.