Stroke Training and Awareness Resources (STARs)

CHA2DS2-VASc calculator

Watch the video below to see an example of how a score calculator can be used to assess a patient’s risk.

For more information and links to Atrial Fibrillation Calculators visit:

CHA2DS2-VASc Score for Atrial Fibrillation Stroke Risk

CHA2DS2VASC/HAS-BLED/EHRA Atrial Fibrillation Risk Score Calculator

Use the button on the right to access Cha2DS2-VASc calculator:

CHA2DS2-VASc Score Calculator

  • Congestive Heart Failure History
  • Hypertension History
  • Age in years
  • Diabetes Mellitus
  • Stroke/TIA/Thromboembolism History
  • Vascular Disease History
  • Sex

The CHA2DS2-VASc score includes common stroke risk factors. The maximum CHA2DS2-VASc score is 9 (for age, either the patient is ≥75 years and gets two points, is between 65-74 and gets one point, or is under 65 and does not get points). Note that female gender only scores one point if the patient has at least one other risk factor, and does not score any points in isolation.

Page last reviewed: 25 Jul 2023