CURB-65 Score Calculator
CURB-65 Score Calculator for Pulmonology. Use the score to support site-of-care decisions for community-acquired pneumonia, alongside oxygenation, comorbidities, social support, and clinical judgment.
How this calculator works
CURB-65 estimates pneumonia mortality risk using confusion, urea, respiratory rate, blood pressure, and age 65 years or older.
Inputs used
- Confusion
- Urea/BUN
- Respiratory rate
- Blood pressure
- Age
Clinical interpretation
Use the score to support site-of-care decisions for community-acquired pneumonia, alongside oxygenation, comorbidities, social support, and clinical judgment.
Limitations and safety notes
CURB-65 does not capture all markers of severe disease, immunosuppression, hypoxemia, sepsis, or barriers to outpatient care.
References
- Lim WS, van der Eerden MM, Laing R, et al. Defining community acquired pneumonia severity. Thorax. 2003.
- ATS/IDSA community-acquired pneumonia guideline resources.
Editorial review and citation methodology
Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: June 19, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.
- Prefer original validation studies for scoring systems and prediction tools.
- Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
- Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.