Menu

Heart risk check

Heart disease risk calculator (PREVENT)

Your estimated chance of a heart attack, stroke or heart failure over the next 10 and 30 years, using the American Heart Association's PREVENT equations. You need numbers from a recent checkup.

Last reviewed: By the uncovermyrisk.com editorial team Educational only, not medical advice.

Already had a heart attack, stroke or heart failure? This calculator is not for you. PREVENT was built for people without known cardiovascular disease (Khan 2024). Your care team can tell you your risk.

Your numbers

Use your most recent results. Cholesterol in mg/dL, as on US lab reports. Nothing you type leaves this page.

Sex
PREVENT uses separate equations for female and male biology.
years
30 to 79
mm Hg
90 to 180 (systolic). Blood pressure ranges
mg/dL
130 to 320
mg/dL
20 to 100
mL/min/1.73m²
15 to 140. Usually printed on a basic or comprehensive metabolic panel. More on the number: eGFR calculator and stages.
Only have creatinine? Estimate eGFR

Uses the CKD-EPI 2021 equation, the one PREVENT was built with.

Do you take blood pressure medicine?
Do you take a statin?
Do you have diabetes?
Do you smoke now?
Answer yes if you smoke cigarettes now.
Your result appears here

What you will see

Your 10-year risk, your 30-year risk (ages 30 to 59), how you compare with a reference profile, and which of your numbers move the estimate most.

Educational only, not medical advice. An estimate for groups of people, not a diagnosis.

Source

Khan SS et al., Circulation 2024 (AHA PREVENT), base model for total cardiovascular disease. Coefficients from the open-source preventr package, checked against its published test values.

Validated in

About 3.3 million US adults aged 30 to 79 without known cardiovascular disease in the derivation data, and 3.3 million more in external validation.

Limits

Not for people who already have heart disease, stroke or heart failure, or who are under 30 or over 79. It cannot see family history, Lp(a), calcium scores or other factors your doctor may use.

What this calculator estimates

PREVENT estimates the chance of a first cardiovascular event, meaning a heart attack, a stroke or heart failure, over 10 years for adults aged 30 to 79, and over 30 years for adults aged 30 to 59 (Khan 2024). It was developed by the American Heart Association from data on more than 6.6 million US adults (Khan 2024).

We use the base model, which needs: sex, age, total and HDL cholesterol, systolic blood pressure, kidney function (eGFR), diabetes, current smoking, and whether you take blood pressure medicine or a statin (Khan 2024). The paper also has versions that add urine albumin, HbA1c or a postcode-based deprivation index; we do not use those.

How to read your result

A 10-year risk of 8% means that about 8 in 100 people with the same numbers would be expected to have one of these events in 10 years. It does not tell you whether you will be one of them.

The 2025 AHA/ACC high blood pressure guideline uses a 10-year PREVENT risk of 7.5% or more as one reason to start blood pressure medicine in people with stage 1 high blood pressure (AHA/ACC 2025). That is why the bar changes color at 7.5%. It is a line for one treatment decision, made with a clinician, not a verdict on your health.

Where the numbers come from

Cholesterol comes from a lipid panel (MedlinePlus). eGFR is calculated from a creatinine blood test and is often printed on a metabolic panel (NIDDK). If you only have creatinine, the helper above uses the CKD-EPI 2021 equation (Inker 2021). Blood pressure should be an average of good readings, not one high reading (NHLBI). See What numbers do I need? for more.

Want the detail behind the equations? Read PREVENT equations explained, or see how it compares in PREVENT vs ASCVD. Wondering about a statin? The statin eligibility check walks through the USPSTF criteria, which use the older ASCVD estimate, and the aspirin check does the same for daily low-dose aspirin.

Sources

  1. Khan SS, Matsushita K, Sang Y, et al. Development and Validation of the American Heart Association's PREVENT Equations. Circulation. 2024;149(6):430-449. doi.org/10.1161/CIRCULATIONAHA.123.067626
  2. Mayer M. preventr: An Implementation of the PREVENT and Pooled Cohort Equations. R package version 0.12.1, CRAN, 2026 (MIT licence). Source of the coefficient tables we use. cran.r-project.org/package=preventr
  3. Jones DW, et al. 2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA/ASPC/NMA/PCNA/SGIM Guideline for the Prevention, Detection, Evaluation and Management of High Blood Pressure in Adults. Circulation. 2025;152:e114-e218. doi.org/10.1161/CIR.0000000000001356
  4. Inker LA, Eneanya ND, Coresh J, et al. New Creatinine- and Cystatin C-Based Equations to Estimate GFR without Race. N Engl J Med. 2021;385:1737-1749. doi.org/10.1056/NEJMoa2102953
  5. National Institute of Diabetes and Digestive and Kidney Diseases (NIH). Chronic Kidney Disease Tests and Diagnosis. www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/tests-diagnosis
  6. MedlinePlus (National Library of Medicine). Cholesterol Levels. medlineplus.gov/lab-tests/cholesterol-levels/
  7. National Heart, Lung, and Blood Institute (NIH). High Blood Pressure. www.nhlbi.nih.gov/health/high-blood-pressure

Written and maintained by the uncovermyrisk.com editorial team. We do not have a medical reviewer; every claim links to its primary source above. Last reviewed: 2026-10-29. Spotted an error? See About.