CURB-65 score calculator

C — Confusion New disorientation to person, place, or time +1
U — Urea Blood urea nitrogen > 7 mmol/L (> 19 mg/dL) +1
R — Respiratory rate ≥ 30 breaths per minute +1
B — Blood pressure Systolic < 90 mmHg or diastolic ≤ 60 mmHg +1
65 — Age Age ≥ 65 years +1

0 out of 5

Low severity

Score 0–1

CURB-65 is a validated clinical scoring tool for assessing the severity of community-acquired pneumonia. Each letter represents one criterion: Confusion, Urea, Respiratory rate, Blood pressure, and age 65 or over. Scores range from 0 to 5. The tool calculates the score only — clinical interpretation and management decisions remain with the treating clinician.