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Clinical Calculators & Medical Scores
Guideline-based bedside calculators for clinicians. Free, mobile-friendly, computed locally — no data uploaded.
⚖️ BMI
Calculate body mass index from weight and height, with WHO weight-status category.
🩸 MAP
Estimate mean arterial pressure from systolic and diastolic blood pressure.
🧠 GCS
Score consciousness from eye, verbal and motor responses (3–15).
📐 BSA
Estimate body surface area (Mosteller formula) for dosing.
🧪 Anion Gap
Serum anion gap with optional albumin correction.
⚠️ qSOFA
Quick SOFA for risk of poor outcome in suspected infection.
🫁 CURB-65
Community-acquired pneumonia severity and disposition.
🫀 Child-Pugh
Grade severity of chronic liver disease (Class A/B/C).
🫀 MELD-Na
Model for End-stage Liver Disease with sodium (UNOS).
🧫 FIB-4
Non-invasive estimate of advanced hepatic fibrosis.
📈 QTc
Heart-rate–corrected QT interval.
🦵 Wells DVT
Pre-test probability of deep vein thrombosis.
🫁 Wells PE
Pre-test probability of pulmonary embolism.
🫘 CrCl
Estimate creatinine clearance for renal drug dosing.
🫘 eGFR
Estimated GFR by the race-free CKD-EPI 2021 creatinine equation.
🩸 HAS-BLED
Major-bleeding risk on anticoagulation in atrial fibrillation.
⚠️ NEWS2
Aggregate early-warning score for acute deterioration (SpO2 scale 1).
🌡️ SIRS
Systemic inflammatory response syndrome criteria (≥ 2 positive).
🦠 McIsaac
This tool calculates the McIsaac score: the four Centor criteria plus an age adjustment, to decide on group A strep testing.
🫁 PERC
Rule out PE in low-risk patients without D-dimer (all 8 negative).
❤️ HEART
Risk of major adverse cardiac events in ED chest pain.
🦵 Padua
VTE risk stratification in hospitalised medical patients (Barbar 2010).
⚖️ IBW
Ideal body weight and adjusted body weight for dosing.
🫁 A–a gradient
Alveolar–arterial oxygen gradient (room air, sea level by default).
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