Health & Fitness
CURB-65 Pneumonia Severity Calculator
Assess pneumonia severity and mortality risk using the CURB-65 criteria.
Preparing your result…
What this calculator does
Calculates CURB-65 Pneumonia Severity Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
CURB-65 = Confusion + Urea>7 + RespRate≥30 + BP low + Age≥65
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • CURB-65 gives 1 each for new confusion, urea>7 mmol/L, respiratory rate≥30/min, systolic BP<90 OR diastolic≤60 mmHg, and age≥65. Sum 0–5; blood-pressure criterion contributes at most one point.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Hospital adult community-acquired pneumonia context with clinical judgment. If converting BUN, urea 7 mmol/L corresponds to BUN about 19.6 mg/dL; original “>19” can misclassify borderline values. Do not substitute this for diagnosis or apply it unchanged to children/hospital-acquired disease.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | CURB-65 score |
|---|---|
| Worked example | 0 /5 |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
Report a mistake or request an improvement
Tell us if a formula, unit, explanation, or result needs attention. Your message will include this calculator’s name and page.
Related calculators
Absolute Neutrophil Count (ANC) Calculator
Calculate absolute neutrophil count from white blood cell count and differential percentages.
CHA₂DS₂-VASc Stroke Risk Calculator
Estimate stroke risk in atrial fibrillation using the CHA₂DS₂-VASc score.
Child-Pugh Score Calculator
Assess severity of chronic liver disease using the Child-Pugh classification.
Glasgow Coma Scale (GCS) Calculator
Score level of consciousness from eye, verbal, and motor responses.
STOP-Bang Sleep Apnea Risk Calculator
Screen for obstructive sleep apnea risk using the STOP-Bang questionnaire.
Anion Gap Calculator
Calculate the serum anion gap to help classify metabolic acidosis.
Namaste! Did this CURB-65 Pneumonia Severity Calculator help you?
Aapka ek click humein behtar banata hai. Just tap a star, no sign-in, no typing.