Pediatric Dosage Calculator
Calculate pediatric medication doses using weight-based, BSA-based, and age-based formulas including Clark's, Young's, and Fried's rules.
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
Child Information
Dosing Information
Standard adult dose for age-based calculations
Per-kg dose from drug reference
Do not exceed adult dose
Recommended Dose
200.0 mg
Weight-based (mg/kg)
Age-Based Methods
Clark's Rule: 147.0 mg
Young's Rule: 147.1 mg
Important Notice
Always verify doses with pediatric drug references. Weight-based dosing (mg/kg) is preferred when specific recommendations are available.
Pediatric Dosing Formulas
Traditional Rules
- Clark's Rule: (Weight in lbs / 150) × Adult dose
- Young's Rule: [Age / (Age + 12)] × Adult dose
- Fried's Rule: (Age in months / 150) × Adult dose
Modern Approaches
- Weight-based: mg/kg × weight (preferred)
- BSA-based: (Child BSA / 1.73) × Adult dose
- Always check: Maximum dose limits
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Calcolatrici Correlate
sources
- •World Health Organization (WHO) — Global health metrics, disease classification, and nutritional standards. who.int
- •Centers for Disease Control and Prevention (CDC) — Health statistics, BMI guidelines, and disease prevention data. cdc.gov
- •National Institutes of Health (NIH) — Medical research, clinical guidelines, and health calculators. nih.gov
- •Mayo Clinic — Clinical health information, disease reference, and wellness guidance. mayoclinic.org
For a complete list of all references used across the site, visit our full sources page.
Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
Formula Source: WHO Health Metrics Standards
by World Health Organization