Pediatric Drug Dosage Calculator
Calculate safe and effective drug dosages for children using weight-based, BSA-based, and age-based formulas.
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
Patient Information
Drug Parameters
Standard adult dose for comparison
For weight-based calculations
Recommended Pediatric Dose
200.0 mg
Maximum safe dose: 200.0 mg
Patient Parameters
Weight: 20.0 kg
BSA: 0.782 m²
Age: 5.0 years
Important Notice
These calculations are estimates. Always verify doses with current drug references, consider organ function, and consult with a pharmacist or physician.
Dosing Methods Explained
| Method | Formula | Best For |
|---|---|---|
| Weight-Based | Weight (kg) × mg/kg | Most common, recommended method |
| BSA-Based | (Child BSA / 1.73) × Adult Dose | Chemotherapy, narrow therapeutic index |
| Clark's Rule | (Weight lbs / 150) × Adult Dose | Historical method |
| Young's Rule | (Age / (Age + 12)) × Adult Dose | Children 1-12 years |
| Fried's Rule | (Age in months / 150) × Adult Dose | Infants under 1 year |
Help us improve!
How would you rate the Pediatric Drug Dosage Calculator?