Pediatrics calculators

Formula active with medication-safety guardrails AAP / OTC label / regulatory source informed 4 sources

Pediatric Acetaminophen Dose Calculator

Estimate a weight-based pediatric acetaminophen dose range and liquid volume with age, concentration, and overdose-safety guardrails.

Formula active with NSAID safety guardrails AAP / OTC label / MedlinePlus informed 4 sources

Pediatric Ibuprofen Dose Calculator

Estimate a weight-based pediatric ibuprofen dose and liquid volume with age, concentration, dehydration, kidney-risk, NSAID-allergy, and duplicate-NSAID guardrails.

Source-mapped; urgent red flags built in WHO/UNICEF-style ORS guidance 3 sources

Pediatric Oral Rehydration Calculator

Estimate an oral rehydration solution (ORS) plan for children with diarrhea using weight-based guidance and clear red-flag warnings.

Formula active with CDC LMS data CDC 2000 growth chart LMS data 4 sources

Child BMI Percentile Calculator

Calculate BMI-for-age percentile for children and teens using CDC LMS growth-chart data, with BMI category and severe-obesity threshold flags.

Source-mapped educational formula Classic pediatric fluid formula 3 sources

Pediatric Maintenance Fluid Calculator

Estimate pediatric daily and hourly maintenance fluid requirements using the Holliday-Segar 100/50/20 method and 4-2-1 hourly rule.

Source-mapped clinical score Standard newborn assessment score 3 sources

APGAR Score Calculator

Calculate a newborn APGAR score from heart rate, respiratory effort, muscle tone, reflex irritability, and color.

Source-mapped clinical scale Published pediatric dehydration scale 3 sources

Pediatric Dehydration Score Calculator

Estimate a child Clinical Dehydration Scale score from appearance, eyes, mucous membranes, and tears, with urgent-care warnings.

Activated — arithmetic converter only Medication-safety arithmetic utility 2 sources

Pediatric Liquid Medicine mL Converter

Convert a prescribed pediatric liquid medicine dose in mg into mL from the bottle concentration, with dosing-device safety reminders.

Activated — feeding planning estimate AAP parent-guidance rule-of-thumb estimate 1 source

Infant Milk Intake by Weight Calculator

Estimate a formula-feeding planning range from infant weight using AAP’s 2.5 oz per pound per day rule of thumb, with feeding-cue safety notes.

Activated — newborn monitoring estimate Percent-change formula with AAP weight-loss literature context 2 sources

Newborn Weight Loss Percentage Calculator

Calculate newborn weight loss percentage from birth weight and current weight, with conservative feeding and dehydration warning notes.

Activated — preterm age arithmetic AAP parent-guidance arithmetic formula 2 sources

Corrected Age for Preterm Babies Calculator

Calculate corrected age for a premature baby from chronological age and gestational age at birth, with developmental tracking notes.