Doctaverse

Calculators A–Z

All 80 calculators, alphabetically.

Absolute Eosinophil Count (AEC)

Hematology

Absolute Lymphocyte Count (ALC)

Hematology

Absolute Neutrophil Count (ANC)

Hematology

Alvarado Score (Appendicitis)

Scores & Severity

Alveolar–Arterial (A–a) Oxygen Gradient

Respiratory

Anion Gap

Fluids & Electrolytes

APGAR Score

Neonatology

Appendicitis Inflammatory Response (AIR) Score

Scores & Severity

Arterial Oxygen Content (CaO₂)

Respiratory

Asthma Predictive Index (API)

Respiratory

AVPU Scale

Emergency/Resus

Bacterial Meningitis Score (Children)

Infectious

Basal Metabolic Rate (BMR)

General

Behavioural Observational Pain Scale (BOPS)

Scores & Severity

BMI Calculator

General

Body Surface Area (Mosteller)

Growth & Anthropometry

Burns Fluid Resuscitation (Parkland)

Emergency/Resus

Calculated Serum Osmolality

Renal

Centor Score (McIsaac modified)

Infectious

Cerebral Perfusion Pressure (CPP)

Emergency/Resus

CHEOPS Pain Scale

Scores & Severity

Childhood Hodgkin Int'l Prognostic Score (CHIPS)

Scores & Severity

Corrected (Adjusted) Age for Prematurity

Neonatology

Corrected Calcium (Payne)

Fluids & Electrolytes

Corrected QT Interval (QTc)

Cardiology

Corrected Reticulocyte Count & Production Index

Hematology

Downes Score (Neonatal Respiratory Distress)

Neonatology

Estimated Blood Volume

Hematology

Estimated GFR (Bedside Schwartz)

Renal

Estimated Weight for Age (APLS)

Emergency/Resus

ET Tube Depth (Neonatal)

Neonatology

ET Tube Size

Emergency/Resus

FeverPAIN Score (Pharyngitis)

Infectious

FLACC Pain Scale

Scores & Severity

Fractional Excretion of Magnesium (FEMg)

Renal

Fractional Excretion of Sodium (FENa)

Renal

Fractional Excretion of Urea (FEUrea)

Renal

Free Water Deficit (Hypernatraemia)

Fluids & Electrolytes

Glasgow Coma Scale (GCS)

Scores & Severity

Glucose Infusion Rate (GIR) & TPN

Neonatology

Growth z-scores (WHO)

Growth & Anthropometry

HbA1c → Estimated Average Glucose (eAG)

Endocrine

Hypernatremic Dehydration

Fluids & Electrolytes

Hyponatremic Dehydration

Fluids & Electrolytes

IV Flow Rate (Drip Rate)

Medications

Kocher Criteria (Septic Hip)

Scores & Severity

Lansky Play-Performance Scale

Scores & Severity

Left Ventricular Fractional Shortening (FS)

Cardiology

Maintenance Fluid (Holliday-Segar)

Fluids & Electrolytes

Maximum Allowable Blood Loss (MABL)

Hematology

Mean Arterial Pressure (MAP)

Cardiology

Mentzer Index

Hematology

Mid-Parental Target Height

Growth & Anthropometry

Neonatal Bilirubin Thresholds (AAP 2022)

Neonatology

New Ballard Score

Neonatology

Oxygen Saturation Index (OSI)

Respiratory

Oxygenation Index

Respiratory

PaO₂/FiO₂ Ratio (P/F Ratio)

Respiratory

Partial Exchange Transfusion (Polycythemia)

Neonatology

Pediatric Appendicitis Score (PAS)

Scores & Severity

Pediatric Asthma Score (PAS)

Respiratory

Pediatric Asthma Severity Score (PASS)

Respiratory

Pediatric Blood Pressure (AAP 2017)

Cardiology

Pediatric Echo Z-Score (Pettersen)

Cardiology

Pediatric Kidney Length (Obrycki)

Renal

Pediatric Respiratory Assessment Measure (PRAM)

Respiratory

Serum–Ascites Albumin Gradient (SAAG)

GI & Liver

Silverman-Andersen Score

Neonatology

Sodium Correction for Hyperglycaemia

Fluids & Electrolytes

Sodium Deficit (Hyponatraemia)

Fluids & Electrolytes

Spirometry Z-Score (GLI 2012)

Respiratory

SpO₂/FiO₂ Ratio (S/F Ratio)

Respiratory

Stool Osmotic Gap

GI & Liver

Thompson Score (Neonatal HIE)

Neonatology

Total Iron Deficit (Ganzoni)

Hematology

Transtubular Potassium Gradient (TTKG)

Renal

Umbilical Catheter Length

Neonatology

Urine Anion Gap

Renal

Weight-Based Dose

Medications

Westley Croup Score

Respiratory