10-Year ASCVD Risk Estimator
Use this ASCVD risk calculator to estimate your 10-year risk of heart attack or stroke using pooled cohort equations.
Educational use only. This does not replace clinical judgment or personal medical advice.
What is an ASCVD risk calculator?
An ASCVD risk calculator estimates your chance of having a cardiovascular event in the next 10 years. ASCVD stands for atherosclerotic cardiovascular disease, which includes heart attack, stroke, and other artery-related events. Clinicians use this estimate to guide prevention decisions, including lifestyle changes and whether to discuss cholesterol-lowering medication.
Who should use this tool?
This calculator is designed for adults ages 40 to 79 who do not already have known clinical ASCVD. It can help frame a conversation about prevention. The estimate is most useful when paired with your full medical history, physical exam, and lab review.
- Useful for preventive care visits
- Helpful when discussing statin therapy
- Useful for tracking risk changes over time
Inputs used in this ASCVD risk calculator
Age and sex
Age is one of the strongest risk drivers. Sex-specific equations are used because baseline risk patterns differ between men and women.
Race
The pooled cohort equations include models for Black adults and White adults. For people in other race groups, many tools apply the White/Other equation as an approximation, with clinical interpretation.
Lipids: total cholesterol and HDL
Higher total cholesterol and lower HDL cholesterol can increase estimated risk. Make sure lab values are recent and measured in mg/dL for accurate results.
Blood pressure and treatment status
Systolic blood pressure is entered along with whether blood pressure medication is being used. Treated and untreated pressure affect risk differently in the equation.
Smoking and diabetes
Current smoking and diabetes each raise cardiovascular risk. These are strong risk modifiers and often shift patients into a higher risk group.
How to interpret your 10-year ASCVD risk
After calculation, your result is placed into one of four common categories:
- Low risk: less than 5%
- Borderline risk: 5% to 7.4%
- Intermediate risk: 7.5% to 19.9%
- High risk: 20% or greater
These cutoffs support shared decision-making. They are not automatic treatment commands. Your clinician may also review additional "risk enhancers" such as family history of premature heart disease, chronic kidney disease, inflammatory conditions, and coronary artery calcium score.
Ways to reduce ASCVD risk
- Stop smoking and avoid secondhand smoke exposure
- Follow a heart-healthy eating pattern (vegetables, fruits, whole grains, lean proteins)
- Exercise regularly (at least 150 minutes/week moderate activity)
- Improve sleep quality and manage stress
- Control blood pressure, blood sugar, and cholesterol
- Discuss statins or other therapies when appropriate
Limitations of online risk tools
Every risk equation is an estimate, not a diagnosis. It may overestimate or underestimate risk in certain individuals and populations. Results can change with updated labs, blood pressure control, or smoking status. Use this tool as a starting point for a preventive health conversation, not as final medical advice.
Bottom line
A good ASCVD risk calculator turns complex risk factors into a simple number you can act on. If your estimated risk is borderline, intermediate, or high, it is worth discussing a personalized prevention plan with your healthcare professional.