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Pediatric Dosing Calculator

Young's, Clark's, Fried's Rules & mg/kg dosing

Pediatric Dose Estimation

Patient Parameters

Select Pediatric Rule

Common Drugs (adult doses shown)

Rule Comparison

RuleFormulaExampleBest Use
Young'sAge/(Age+12)6yo → 0.33×adult1‑12 years
Clark'sWeight(lb)/15020kg(44lb) → 0.29×adultWeight‑based
Fried'sAge(months)/1506yo(72m) → 0.48×adultInfants <1yr
mg/kgmg/kg × weight15 mg/kg × 20kg = 300mgMost accurate

Important

These rules provide approximate doses. Always verify with official pediatric references and consider individual patient factors (organ function, disease state).