Health & Fitness
CHA₂DS₂-VASc Stroke Risk Calculator
Estimate stroke risk in atrial fibrillation using the CHA₂DS₂-VASc score.
Preparing your result…
What this calculator does
Calculates CHA₂DS₂-VASc Stroke Risk 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
CHA₂DS₂-VASc = CHF+1, HTN+1, Age≥75+2, Diabetes+1, Stroke+2, Vascular+1, Age65-74+1, Sex(female)+1
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
- • CHA2DS2-VASc: CHF/LV dysfunction 1, hypertension 1, age≥75 2 OR age65–74 1, diabetes1, prior stroke/TIA/systemic embolism2, vascular disease1, female sex1. Maximum 9; age bands are mutually exclusive.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Valid as the named AF risk score, not an automatic anticoagulation prescription. Guideline/jurisdiction and eligibility matter; 2024 ESC instead emphasizes CHA2DS2-VA without sex. Do not silently relabel VASc as VA or attach an unsourced universal annual-risk percentage.
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 | CHA₂DS₂-VASc score |
|---|---|
| Worked example | 0 points |
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
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