Neonatal Calculators
No account, no paywall. Built for the bedside.
APGAR Score
1, 5 & 10 minute
Score Appearance, Pulse, Grimace, Activity and Respiration at each timepoint with automatic interpretation.
Resuscitation · NRPPPV Initial Settings
NRP 9th Edition
Starting PIP, PEEP, rate and FiO₂ for positive-pressure ventilation, with MR SOPA corrective steps.
Resuscitation · NRPETT Size & Depth
NRP 9th Edition
Endotracheal tube size (mm ID) and tip-to-gum insertion depth by weight and gestational age, per NRP Tables 5-1 and 5-3.
Resuscitation · NRPSuction Catheter Size
by ETT
Suction catheter size (Fr) for the intubated newborn by ETT inner diameter, per NRP Table 5-4.
Resuscitation · NRPPreductal SpO₂ Targets
by Minute of Life
Target SpO₂ range for each minute of life, with a check against the current preductal reading.
Resuscitation · NRPEpinephrine Dose
NRP 9th Edition
Weight-based IV/IO and ETT epinephrine doses in mg and mL of 1:10,000 solution for neonatal resuscitation.
Resuscitation · NRPVolume Expander
NRP 9th Edition
10 mL/kg bolus volume and infusion rate for normal saline or O-negative blood in neonatal resuscitation.
Glucose Infusion Rate
(GIR)
Convert between dextrose rate/concentration and mg/kg/min, or calculate IV rate from target GIR.
NICU · Vascular AccessUmbilical Catheter
UAC & UVC Depth
UAC (high/low) and UVC insertion depth by birth weight or shoulder-umbilicus distance.
NICU · Vascular AccessPICC Insertion Depth
Landmark Technique
Landmark measurement technique for PICC placement, plus a sanity-check length range by weight.
NICU · FluidsFluid Maintenance
Day of Life 1–7
Starting fluid range by birth weight category and day of life, with total volume and hourly rate.
NICU · FluidsCaloric Needs
kcal/kg/day
Goal caloric intake at full feeds for term and preterm infants, with a matching protein target.
Surfactant Dose
Survanta · Curosurf · Calfactant
Weight-based dose in mg and mL for the three FDA-approved natural surfactants used in US NICUs.
NICU · RespiratoryCaffeine Citrate
Apnea of Prematurity
Loading and maintenance doses in mg and mL of the 20 mg/mL caffeine citrate solution.
NICU · RespiratoryChest Tube / Pigtail
Size by Weight
Commonly used French sizes for pigtail catheters and traditional chest tubes by weight.
Fenton Growth Chart
2025 Size at Birth
Classify size at birth (SGA/AGA/LGA) using exact 2025 published weight cutoffs, plus length and HC percentile estimates.
GrowthOlsen 2010
Intrauterine Growth
Birth size classification (SGA/AGA/LGA) using the exact Olsen 2010 US-population LMS reference for weight, length and HC.
All calculators are clinical decision support tools and do not replace physician judgment. See individual pages for guideline sources and disclaimers.