This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
For pediatricians and nurses
Pediatric calculators for practice
Percentiles and z-scores (WHO, CDC, Fenton, Kromeyer-Hauschild), bilirubin, dosing, fluids and clinical scores – with source references, free of charge and ad-free.
- Usable immediately without an account
- Every number with a source
- Trend per patient record with professional account
Frequently used
Growth & newborns
- Growth & percentiles16 WHO, CDC and German references – weight, length, head circumference, BMI, growth velocity, final height, Bayley-Pinneau
- Preterm infants10 Fenton, Olsen, size at birth, weight gain, NICHD outcome of extremely preterm infants
- Neonatology12 APGAR, Ballard, Silverman, SNAP-II, CRIB II, nSOFA, Finnegan, early-onset sepsis risk, fluid and energy requirements
- Bilirubin3 AAP 2022, AAP 2004 and AWMF – phototherapy and exchange transfusion thresholds
- Gestational age5 Due date, last menstrual period, PMA, day of life, corrected age, ROP screening
- Syndromes6 Down syndrome (Zemel 2015), Noonan syndrome (Cappa 2024), Turner syndrome, achondroplasia
- Cerebral palsy6 Brooks 2011 by GMFCS level
- Anthropometry14 Upper arm circumference, skinfolds, waist circumference, body fat
Acute & Intensive Care Medicine
- Emergency & intensive care medicine22 PEWS, PECARN, trauma, PIM 3, PELOD-2, PRISM III, burns, airway, resuscitation
- Fever & infectious diseases13 Febrile Infant Rules, sepsis, meningitis, septic arthritis, Kawasaki, BRUE
- Medications & Dosing18 mg/kg, mg/m², dilution, infusion, maximum doses, emergency drugs, syringe pump
- Fluids, electrolytes & acid-base19 Maintenance requirement, deficits, sodium, potassium, osmolality, anion gap, compensation
Organ specialties
- Cardiology16 Blood pressure, ABPM, QTc, echo z-scores, coronary arteries in Kawasaki disease, hemodynamics
- Pulmonology & Asthma16 Spirometry, asthma and bronchiolitis scores, oxygenation indices
- Nephrology & urology17 eGFR (Schwartz, CKiD U25), urine ratios, fractional excretions, AKI, bladder capacity
- Gastroenterology & Hepatology15 Appendicitis, PUCAI, PCDAI, PELD, dehydration, Rome IV criteria
- Endocrinology & Diabetology10 HOMA-IR, QUICKI, HbA1c/eAG, insulin factors, calcium-phosphate, androgen index
- Hematology & Oncology15 Absolute cell counts, reticulocytes, iron, transfusion, tumor lysis, DIC
- Neurology & pain12 PedMIDAS, phenytoin, head trauma rules, stroke scale, pain scales
- Allergology & Dermatology5 SCORAD, EASI, POEM, UAS7, anaphylaxis
- Rheumatology3 JADAS, cJADAS, SLEDAI-2K
- Orthopedics3 Leg length discrepancy, multiplier method, epiphysiodesis, Cobb angle
Tools & conversions
- Universal calculators3 One measured value against any reference curve, bulk CSV, curve generator
- Trend curves4 Multiple measurement points of a child over time
- Z-score & percentile4 Z-score ↔ percentile ↔ measured value, gestational age weeks ↔ days
- Laboratory & Conversions10 Lipids, urea/creatinine, SI units, weight, length, temperature
- Nutrition18 Energy and protein requirements, feeding volumes, infant formula, parenteral nutrition
- Development & Preventive Care3 Developmental quotient, vaccination intervals, catch-up vaccinations
Transparent methodology
All growth calculators use a common engine based on the LMS method (Cole & Green). Reference values come exclusively from published sources; where data are missing, the gap is stated rather than estimated.
Methodology · Reference datasets · All calculators at a glance
Note for healthcare professionals
The results are calculation aids and do not replace clinical assessment. Please always check the inputs and plausibility.