Cardiovascular Risk Calculators
Cardiovascular risk calculators estimate the likelihood of a heart attack or stroke over the next 10 years. They integrate clinical variables such as blood pressure, cholesterol, and metabolic factors to produce a personalised risk estimate, guiding decisions about lifestyle modification and preventive therapies including statins and antihypertensives.
ACC / AHA
ASCVD Risk Calculator
Traditional 10-year cardiovascular risk calculator based on the ACC/AHA Pooled Cohort Equations. Validated for primary prevention in adults aged 40–79.
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ACC / AHA 2026
AHA PREVENT Risk Calculator
Preferred cardiovascular risk calculator in the 2026 ACC/AHA dyslipidemia guideline. Incorporates eGFR, BMI, and optional HbA1c and albuminuria. Ages 30–79.
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MESA
Coronary Calcium Risk Calculator
Risk assessment incorporating coronary artery calcium (CAC) score using the MESA model. Particularly useful for refining intermediate-risk estimates.
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MESA Percentile
Calcium Score Percentile Calculator
Compare your coronary calcium score to age, sex, and ethnicity-matched reference data. Find out if your CAC score is above or below average for your peers.
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When to Use Each Tool
| Calculator | What It Estimates | Best Used For | Key Inputs | Guideline Role |
|---|---|---|---|---|
| PREVENT Risk Calculator | 10-year risk of ASCVD and heart failure | Primary prevention risk assessment in adults 30–79 years | Age, cholesterol, BP, BMI, eGFR, optional HbA1c/UACR | Preferred risk calculator in the 2026 ACC/AHA dyslipidemia guideline |
| ASCVD Risk Calculator (PCE) | 10-year risk of first ASCVD event (MI, CHD death, stroke) | Historical comparison with older studies and prior risk estimates | Age, cholesterol, BP, diabetes, smoking, race | Used in 2013–2018 guidelines; now largely replaced by PREVENT |
| MESA CAC Risk Calculator | 10-year CHD risk incorporating coronary calcium score | When CAC is available and risk needs refinement | CAC score + traditional risk factors | Used for risk reclassification when treatment decisions remain uncertain |
| CAC Percentile Calculator | Age- and sex-adjusted comparison of CAC score | Understanding whether calcium burden is expected or accelerated for age | CAC score, age, sex | Helps interpret CAC results and identify early atherosclerosis |
In most patients, risk assessment begins with the PREVENT risk calculator. If uncertainty remains about treatment decisions, coronary artery calcium (CAC) scoring can help refine risk, and the MESA CAC calculator can estimate risk after CAC testing.
