Clinical Calculators

Instant results. No login. Built for ward rounds.

Emergency / Acute

Consciousness level assessment

Early warning / deterioration

Bedside sepsis screen

Organ failure severity

PE pre-test probability

DVT pre-test probability

Pneumonia severity & mortality

GI bleed rebleed & mortality

KDIGO acute kidney injury staging

Stroke severity — thrombolysis guidance

Haemodynamic instability marker

Mean arterial pressure & perfusion

Glasgow-Blatchford

Upper GI bleed — pre-endoscopy risk

Parkland Formula

Burns 24h fluid resuscitation

Cardiology

AF stroke risk — anticoagulation guidance

Bleeding risk on anticoagulation

ACS 6-month mortality risk

UA/NSTEMI 14-day event risk

Chest pain 6-week MACE risk

10-year CVD risk (NICE recommended)

10-year cardiovascular risk score

Exercise ECG risk stratification

Respiratory

COPD 4-year mortality prediction

PE severity — outpatient eligibility

Alveolar-arterial oxygen gradient

HFNO failure prediction

Labs / Renal

CKD-EPI 2021 — kidney function

Creatinine Clearance

Cockcroft-Gault — drug dosing

Metabolic acidosis classification

Corrected Calcium

Albumin-adjusted serum calcium

Serum Osmolality

Calculated plasma osmolality

Corrected Sodium

Hyperglycaemia sodium correction

Unmeasured osmoles — toxic alcohols

CKD mineral bone disease

Free Water Deficit

Hypernatraemia rehydration guide

ICU / Severity

ICU mortality prediction

Respiratory failure severity (ARDS)

Lactate Clearance

Sepsis resuscitation response

VTE risk in medical inpatients

Surgery / Pre-op

Anaesthetic physical status classification

Surgical morbidity & mortality risk

Emergency laparotomy 30-day mortality

Liver cirrhosis severity

Liver transplant prioritisation

Appendicitis probability score

Clinical Frailty

Rockwood frailty scale

Pressure ulcer risk assessment

Endocrine / Metabolic

Insulin resistance quantification

Body mass index & WHO classification

Body Surface Area

Du Bois formula — drug dosing

Mental Health

Depression screening & severity

Generalised anxiety disorder severity