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CHA₂DS₂-VASc Atrial Fibrillation Stroke Risk Calculator

Annual stroke risk in non-valvular AF.

Calculates the CHA₂DS₂-VASc score from CHF, hypertension, age ≥75, diabetes, stroke/TIA (×2), vascular disease, age 65–74, sex. Guides anticoagulation decisions.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

CHA₂DS₂-VASc: 7 risk factors, max score 9.

In depth

Calculates the CHA₂DS₂-VASc score from CHF, hypertension, age ≥75, diabetes, stroke/TIA (×2), vascular disease, age 65–74, sex. Guides anticoagulation decisions.