Estimate 10- and 30-year cardiovascular, ASCVD and heart-failure risk with the published American Heart Association PREVENT™ equations. Built for clinicians using current patient measurements; results include guideline context and projected treatment benefit. An independent implementation, not affiliated with or endorsed by the American Heart Association.
Intended for clinicians, supporting rather than replacing clinical judgement. Risk should be calculated from current laboratory values and a recent clinical assessment. The PREVENT equations are validated for adults aged 30–79 without known cardiovascular disease, and should not be used in people with known CVD, severe subclinical CVD (ejection fraction below 40%, or coronary artery calcium of 300 or more), a pathogenic variant for an inherited cardiovascular condition, end-stage kidney disease, or a life expectancy under one year. The equations were developed in US adults, so estimates elsewhere warrant caution, and the Social Deprivation Index predictor applies only to US residents. This is an independent implementation and carries no endorsement from the American Heart Association. PREVENT™ is a trademark of the American Heart Association, used here only to identify the published equations.
It estimates the 10-year risk of total cardiovascular disease, atherosclerotic cardiovascular disease (heart attack and stroke) and heart failure for adults aged 30 to 79 without known cardiovascular disease, and the 30-year risk of the same outcomes for adults aged 30 to 59.
It is an independent implementation of the American Heart Association PREVENT equations (Khan et al., Circulation 2024), developed and validated in more than 6.5 million US adults. Required inputs are age, sex, blood pressure, total and HDL cholesterol, eGFR, BMI, diabetes, smoking and treatment status; urine albumin-creatinine ratio, HbA1c and ZIP-code social deprivation are optional. Results are checked against the AHA online calculator, including the AHA's October 2026 HbA1c correction.
The 2013 Pooled Cohort Equations estimate only 10-year ASCVD risk, from age 40, and include race. The PREVENT equations add heart failure and total cardiovascular disease, a 30-year horizon, ages 30 to 79 and kidney and metabolic measures, remove race, and were better calibrated in contemporary cohorts, where the Pooled Cohort Equations overestimated risk.
The 2026 ACC/AHA dyslipidemia guideline groups 10-year PREVENT-ASCVD risk as low (under 3%), borderline (3% to under 5%), intermediate (5% to under 10%) and high (10% or more). The 2025 AHA/ACC blood pressure guideline uses a 10-year PREVENT-CVD risk of 7.5% or more to prioritise drug treatment of stage 1 hypertension.
No. These are not inputs to the PREVENT equations. They act as risk-enhancing factors or additional tests that can refine a treatment decision, and the calculator lists them alongside the result.
It is free. All calculations run in your browser; the values you enter are not sent to a server or stored.