ASCVD Risk Calculator – AHA PREVENT
Estimate 10-year and age-eligible 30-year risk of a first ASCVD event with the corrected AHA PREVENT base equations.
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For a clinician-reviewed primary-prevention discussion
ASCVD means atherosclerotic cardiovascular disease: disease caused by plaque in arteries that can lead to myocardial infarction or stroke. Enter current measurements and explicitly complete every selector. The result estimates risk in a population model; it does not inspect arteries, diagnose disease, or tell an individual which test or treatment to use.
About
This ASCVD risk calculator uses the American Heart Association PREVENT-ASCVD equations to estimate 10-year risk and, when age-eligible, 30-year risk of a first myocardial infarction or stroke. [1, 2]
Current 2026 ACC/AHA dyslipidemia guidance uses PREVENT-ASCVD in place of the older Pooled Cohort Equations for eligible primary-prevention adults. The result is a population-model risk estimate, not a diagnosis or treatment instruction. [6, 8]
Formula
Interpretation
What does ASCVD risk mean?
ASCVD means atherosclerotic cardiovascular disease. This page estimates the chance of a first fatal or nonfatal myocardial infarction or stroke during the stated time horizon among people with similar modeled characteristics. It does not estimate every cardiovascular event, heart-failure risk, or the chance of death from any cause. [1]
10-year vs 30-year ASCVD risk
The corrected PREVENT-ASCVD base model provides a 10-year estimate for ages 30–79 and a 30-year estimate only for ages 30–59. The longer horizon is not extrapolated for people aged 60 or older, and neither percentage is interchangeable with a PREVENT-CVD or PREVENT-HF result. [1, 4]
2026 dyslipidemia categories are conditional context
| 10-year PREVENT-ASCVD estimate | Static guideline term |
|---|---|
| <3% | Low |
| 3% to <5% | Borderline |
| 5% to <10% | Intermediate |
| ≥10% | High |
- 10-year PREVENT-ASCVD estimate
- <3%
- Static guideline term
- Low
- 10-year PREVENT-ASCVD estimate
- 3% to <5%
- Static guideline term
- Borderline
- 10-year PREVENT-ASCVD estimate
- 5% to <10%
- Static guideline term
- Intermediate
- 10-year PREVENT-ASCVD estimate
- ≥10%
- Static guideline term
- High
The 2026 U.S. dyslipidemia guideline applies these terms in a specific lipid-management context: adults without known ASCVD or subclinical atherosclerosis and with LDL-C 70–189 mg/dL. This page does not collect LDL-C or establish whether subclinical atherosclerosis is absent, so it does not dynamically label a submitted result or turn the percentage into a medication, nonstatin therapy, or coronary calcium recommendation. The static context can support clinician–patient shared decision-making only after the applicable pathway is established. [6, 7, 8]
Clinical boundaries
A PREVENT percentage is a population-model estimate, not a diagnosis, emergency assessment, individual prognosis guarantee, or instruction to start a statin, aspirin, another medicine, or coronary calcium testing. The model cannot inspect arteries, identify a prior silent event, or select a dose, target, or care plan. Current measurements, clinical history, factors outside the equation, and the applicable guideline pathway still matter. [3, 8]
How this ASCVD calculator works
| Input | Meaning on this page | Technical range or state |
|---|---|---|
| Sex coefficient | The published female or male coefficient set; it does not infer gender identity, chromosomes, hormone status, or another coefficient. | Female or male set |
| Age | Completed years at the current assessment. | 30–79 years |
| Total cholesterol and HDL-C | Current reliable values from the same assessment period; non-HDL-C is calculated as total cholesterol minus HDL-C. | TC 130–320; HDL-C 20–100 mg/dL |
| Systolic blood pressure | A representative current systolic measurement. | 90–200 mmHg |
| eGFR | A current clinically reported estimate; this page does not calculate eGFR from creatinine. | 15–140 mL/min/1.73 m² |
| Current BP treatment | Whether antihypertensive medicine is currently used. | Yes or No |
| Current statin use | Whether a statin is currently used; this is not a treatment recommendation. | Yes or No |
| Diabetes | The documented diabetes-history input used by the model. | Yes or No |
| Current smoking | Cigarette use within the previous 30 days; it does not quantify pack-years or all nicotine exposure. | Yes or No |
- Input
- Sex coefficient
- Meaning on this page
- The published female or male coefficient set; it does not infer gender identity, chromosomes, hormone status, or another coefficient.
- Technical range or state
- Female or male set
- Input
- Age
- Meaning on this page
- Completed years at the current assessment.
- Technical range or state
- 30–79 years
- Input
- Total cholesterol and HDL-C
- Meaning on this page
- Current reliable values from the same assessment period; non-HDL-C is calculated as total cholesterol minus HDL-C.
- Technical range or state
- TC 130–320; HDL-C 20–100 mg/dL
- Input
- Systolic blood pressure
- Meaning on this page
- A representative current systolic measurement.
- Technical range or state
- 90–200 mmHg
- Input
- eGFR
- Meaning on this page
- A current clinically reported estimate; this page does not calculate eGFR from creatinine.
- Technical range or state
- 15–140 mL/min/1.73 m²
- Input
- Current BP treatment
- Meaning on this page
- Whether antihypertensive medicine is currently used.
- Technical range or state
- Yes or No
- Input
- Current statin use
- Meaning on this page
- Whether a statin is currently used; this is not a treatment recommendation.
- Technical range or state
- Yes or No
- Input
- Diabetes
- Meaning on this page
- The documented diabetes-history input used by the model.
- Technical range or state
- Yes or No
- Input
- Current smoking
- Meaning on this page
- Cigarette use within the previous 30 days; it does not quantify pack-years or all nicotine exposure.
- Technical range or state
- Yes or No
These limits are the implemented model’s technical input ranges, not healthy ranges, treatment targets, diagnoses, or a reason to substitute the nearest boundary. This calculator rejects an out-of-range value instead of silently capping it. It uses the corrected sex-specific base equation and retains unrounded arithmetic until the final one-decimal display. [1, 2, 4]
As a published equation check, the original report’s example of a 50-year-old woman with total cholesterol 240 mg/dL, HDL-C 55 mg/dL, treated systolic pressure 160 mmHg, eGFR 90, and no statin, diabetes, or current smoking produces 3.6% at 10 years and 19.9% at 30 years here. It is not a reference patient or a treatment target. [1, 2]
PREVENT vs the 2013 Pooled Cohort Equations
The 2013 Pooled Cohort Equations are the older ACC/AHA 10-year ASCVD estimator still found in many search results and legacy tools. PREVENT-ASCVD is a newer, race-free AHA model developed from broader contemporary U.S. data, adds kidney function, and supports an age-eligible 30-year horizon. The 2026 ACC/AHA dyslipidemia guideline uses PREVENT-ASCVD instead of the older PCE for its defined primary-prevention risk-assessment pathway. This page calculates only PREVENT-ASCVD; it does not run PCE or convert one model’s percentage into the other. [1, 5, 6, 8]
Who the PREVENT-ASCVD model applies to
The published model was developed for U.S. adults ages 30–79 without known cardiovascular disease or heart failure. This page therefore withholds a result for established disease, a missing required predictor, an out-of-range technical input, or an age outside the model domain. The narrower 2026 lipid-guideline category context additionally specifies no known ASCVD or subclinical atherosclerosis and LDL-C 70–189 mg/dL; the calculator does not establish those extra facts. [1, 4, 8]
The complete AHA PREVENT family also includes total-CVD, heart-failure, and optional expanded models using information such as UACR, HbA1c, or social deprivation. Those are separate outputs and are not silently approximated by this focused base ASCVD calculator. [3, 4]
Why PREVENT does not use race
PREVENT uses sex-specific equations but does not include race as a predictor, so this page has no race field or race coefficient. Race was not converted into another input. The published model instead uses routinely available cardiovascular, kidney, and metabolic factors from a large, diverse U.S. development and validation dataset. [1, 3]
References
- 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. PMID 37947085. PMCID PMC10910659. DOI 10.1161/CIRCULATIONAHA.123.067626.
- Correction to: Development and Validation of the American Heart Association’s PREVENT Equations. Circulation. 2024;149(11):e956. PMID 38466792. DOI 10.1161/CIR.0000000000001230.
- American Heart Association. Predicting Risk of cardiovascular disease EVENTs (PREVENT) Calculator. Official model and implementation information.
- American Heart Association. PREVENT Equations Quickstart Guide. 2026.
- Goff DC Jr, Lloyd-Jones DM, Bennett G, et al. 2013 ACC/AHA Guideline on the Assessment of Cardiovascular Risk. Circulation. 2014;129(25 Suppl 2):S49–S73. PMID 24222018. DOI 10.1161/01.cir.0000437741.48606.98.
- Blumenthal RS, Morris PB, Gaudino M, et al. 2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia. Circulation. 2026;153:e1154–e1276. DOI 10.1161/CIR.0000000000001423.
- Correction to: 2026 ACC/AHA/AACVPR/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the Management of Dyslipidemia. Circulation. 2026. PMID 42330109. DOI 10.1161/CIR.0000000000001457.
- American Heart Association. Top Take-Home Messages for Clinicians: Using PREVENT-ASCVD Equations for Risk-Based Lipid Management. 2026.
FAQ
PREVENT-ASCVD is a sex-specific, race-free AHA risk model developed from contemporary U.S. data. Its base equations use age, cholesterol, systolic blood pressure, eGFR, diabetes, current cigarette smoking, blood-pressure treatment, and statin use. This page uses the formally corrected base equations only.
For the applicable primary-prevention pathway, the 2026 ACC/AHA dyslipidemia guideline uses PREVENT-ASCVD instead of the older Pooled Cohort Equations. That does not make every historical PCE use invalid. This calculator runs PREVENT-ASCVD only and does not convert or compare the two percentages.
The 2026 U.S. dyslipidemia guideline uses low below 3%, borderline from 3% to below 5%, intermediate from 5% to below 10%, and high at 10% or above in a defined context: adults without known ASCVD or subclinical atherosclerosis and with LDL-C 70–189 mg/dL. Because this page does not establish those extra conditions, it shows the thresholds only as static context and never classifies the submitted result.
It should not be used for secondary prevention, established cardiovascular disease or heart failure, ages outside 30–79, or a record with missing or technically out-of-range required inputs. The 30-year equation is additionally limited to ages 30–59. This page also does not run total-CVD, heart-failure, UACR, HbA1c, or social-deprivation model variants.
No. The percentage is one input to a clinician–patient discussion. The applicable pathway may also depend on LDL-C, known or subclinical disease, other risk enhancers, possible coronary calcium information, competing conditions, medication tolerance, and patient preferences. This calculator does not prescribe a statin, aspirin, another medicine, dose, test, target, or treatment plan.
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Disclaimer
Educational and informational reference only. Not intended to replace professional medical advice, diagnosis, treatment, or independent verification.