🏥 General Medicine
Popular
🧪
Creatinine Clearance
Cockcroft-Gault dose adjustment
⚖️
BMI Calculator
Body mass index & classification
📏
Ideal Body Weight
Devine, Robinson, Miller, Hamwi
🫘
eGFR (CKD-EPI 2021)
Kidney function & CKD staging
🔬
Corrected Calcium
Albumin-adjusted serum calcium
🩺
HbA1c Converter
NGSP % ↔ IFCC mmol/mol + eAG
🫁
Spirometry Predicted Values
FEV1/FVC obstructive vs restrictive
🔥
Calorie Burn Calculator
MET-based energy expenditure
🦋
Thyroid Function Test Interpreter
TSH, Free T4 & Free T3 pattern recognition
🤒
Centor / McIsaac Score
Probability of streptococcal pharyngitis
📐
Body Surface Area (BSA)
Mosteller & DuBois formulas
🔥
BMR Calculator
Basal metabolic rate & TDEE
💪
Body Fat Calculator
US Navy circumference method
🍽️
Macro Calculator
Protein, fat & carb targets from TDEE
🫘
FENa Calculator
Fractional excretion of sodium — AKI workup
💧
Free Water Deficit
Water deficit in hypernatraemia
🧂
Corrected Sodium
Sodium adjustment for hyperglycaemia
🩺
HOMA-IR Calculator
Insulin resistance estimate
🫘
Kt/V Calculator
Haemodialysis adequacy
❤️ Cardiovascular
Popular
❤️
HEART Score
Chest pain risk stratification (MACE)
🦵
Wells Score for DVT
Pre-test probability of deep vein thrombosis
🫁
Wells Score for PE
Pre-test probability of pulmonary embolism
❤️
CHA₂DS₂-VASc Score
Stroke risk in atrial fibrillation
💓
QTc Calculator
Bazett & Fridericia corrected QT interval
❤️
TIMI Risk Score
Risk stratification for UA/NSTEMI
🫁
PERC Rule
Pulmonary embolism rule-out criteria
🩸
HAS-BLED Score
Major bleeding risk on anticoagulation
❤️
RCRI Calculator
Perioperative cardiac risk, noncardiac surgery
💓
Killip Classification
Heart failure severity after MI
❤️
Modified Duke Criteria
Diagnostic classification for endocarditis
❤️
PAPi Calculator
Pulmonary artery pulsatility index — RV function
🩸 Hematology & Oncology
🩸
4Ts Score
Probability of heparin-induced thrombocytopenia
🩸
Khorana Risk Score
VTE risk in cancer chemotherapy patients
🩸
ANC Calculator
Absolute neutrophil count & neutropenia risk
🩸
International Prognostic Index (IPI)
Non-Hodgkin lymphoma prognosis
🩺 Gastroenterology & Hepatology
🫀
MELD-Na Score
Liver disease severity & transplant priority
🫀
Child-Pugh Score
Cirrhosis severity classification
🩹
Ranson's Criteria
Pancreatitis severity & mortality prediction
🩸
Glasgow-Blatchford Score
Need for intervention in upper GI bleed
🫀
APRI Score
Noninvasive liver fibrosis screen
🫀
FIB-4 (Fibrosis-4 Index)
Noninvasive liver fibrosis screen
🩸
Rockall Score
Rebleeding & mortality risk, upper GI bleed
🤰 Obstetrics & Gynaecology
Popular
🤰
OB Wheel Calculator
Pregnancy dating — LMP, scan, IVF, EDD
📅
Due Date Calculator
EDD from LMP (Naegele's Rule)
🗓️
Conception Date Calculator
Estimated conception from LMP or EDD
Popular
🥚
Ovulation Calculator
Fertile window & ovulation day
🌙
Period Calculator
Predicted period dates, next 6 cycles
🤰
Bishop Score
Cervical readiness for labour induction
👶 Paediatrics
👶
APGAR Score
Newborn assessment at 1/5/10 min
🧒
Child Development Tracker
Milestones by age, birth to 5 years
👶
Pediatric GCS
Modified GCS for infants & preverbal children
👶
Ponderal Index Calculator
Formula, meaning & IUGR interpretation
🚨 Emergency
🧠
NIH Stroke Scale (NIHSS)
Stroke severity — all 15 items
🫁
CURB-65 Calculator
Pneumonia severity — BTS guideline mortality risk
🧠
Glasgow Coma Scale
Adult neuro status, intubated T-modifier
📉
NEWS2 Calculator
National Early Warning Score 2
❤️
MAP Calculator
Mean arterial pressure & shock targets
⚗️
Anion Gap Calculator
Metabolic acidosis, albumin-corrected
🫁
SpO2/FiO2 Ratio
Non-invasive PaO2/FiO2 surrogate
🦶
Ottawa Ankle Rules
Decision rule for ankle/foot X-ray
🦠
qSOFA Score
Bedside sepsis screen for suspected infection
🔪
Alvarado Score
Clinical probability of acute appendicitis
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ABCD2 Score
Stroke risk after TIA
🌡️
SIRS Criteria
Systemic inflammatory response screening
🔥
Parkland Formula
Fluid resuscitation volume for burns
🦵
Ottawa Knee Rule
Decision rule for knee X-ray
🦴
NEXUS Criteria (C-Spine)
Need for cervical spine imaging after trauma
⚗️
Osmolal Gap Calculator
Screen for toxic alcohol ingestion
🧠
Hunt & Hess Classification
Subarachnoid haemorrhage severity
🧠
ICH Score
Mortality risk after intracerebral haemorrhage
🧠
Canadian CT Head Rule
Decision rule for CT after minor head injury
❤️
Diastolic Shock Index
Heart rate to diastolic BP ratio