estimate your 10-year heart attack & stroke risk tier
Want the exact clinical percentage? This tool gives a simplified risk tier, not a precise number. For the validated 10-year percentage used in clinical practice, use the official ACC/AHA ASCVD Risk Estimator Plus, which uses the full Pooled Cohort Equations.
Your risk factors
Basics
Cholesterol
Blood pressure
Smoking
Diabetes
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LowBorderlineIntermediateHigh
What is ASCVD risk?
ASCVD stands for Atherosclerotic Cardiovascular Disease — plaque buildup in the arteries that can lead to heart attack, stroke, or peripheral artery disease. A "10-year ASCVD risk" estimate answers a specific question: based on your current risk factors, what's the statistical chance of a first major cardiovascular event in the next decade?
Doctors use this kind of estimate, alongside the full clinical picture, to help decide whether lifestyle changes alone are appropriate or whether medication (like a statin) should be part of the conversation.
How this calculator works
This tool uses the same core risk factors as the official ACC/AHA Pooled Cohort Equations — age, sex, total and HDL cholesterol, systolic blood pressure (and whether it's treated), smoking status, and diabetes — and combines them into a transparent point total. That total places you into one of four general risk tiers, matching the same tier boundaries used in clinical guidelines.
What this tool doesn't do is reproduce the exact statistical formula (the Pooled Cohort Equations use complex race- and sex-specific regression coefficients derived from large research cohorts). For that precise percentage, use the official calculator linked above — this tool is meant to give you a clear, honest sense of where you likely stand and what's driving it.
Risk tier reference chart
Tier
10-year risk
General guidance
Low
Under 5%
Continue healthy habits
Borderline
5% – 7.4%
Lifestyle focus; discuss with a doctor
Intermediate
7.5% – 19.9%
Statin therapy commonly discussed
High
20% or higher
Statin therapy commonly recommended
These tier boundaries reflect the 2018 ACC/AHA cholesterol guideline. The decision to start any treatment is always individualized between you and your doctor, not automatic at any threshold.
Factors that drive ASCVD risk
📅
Age
The single biggest driver — risk rises steeply through your 50s, 60s, and beyond.
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Blood pressure
Higher systolic pressure, especially if untreated, meaningfully raises risk.
🥦
Cholesterol
High total cholesterol combined with low HDL ("good" cholesterol) raises risk.
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Smoking
One of the most modifiable major risk factors — quitting has an outsized benefit.
🧭
Diabetes
Substantially raises cardiovascular risk independent of other factors.
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Family history & genetics
Not in this calculator's formula, but a doctor will factor it into your overall picture.
Frequently asked questions
ASCVD stands for Atherosclerotic Cardiovascular Disease — an umbrella term covering coronary heart disease, stroke, and peripheral artery disease caused by plaque buildup (atherosclerosis) in the arteries.
No. The official calculator uses the Pooled Cohort Equations, a validated clinical formula with race- and sex-specific coefficients that produces an exact percentage. This tool uses a simplified, transparent point system based on the same risk factors to estimate a general risk tier, not a precise percentage. Use the official ACC tool (linked above) for the clinically validated number.
In risk models, a hard ASCVD event typically means a first non-fatal heart attack, death from coronary heart disease, or a fatal or non-fatal stroke — the major, unambiguous cardiovascular events researchers track.
Age, blood pressure, total and HDL cholesterol, smoking status, and diabetes are the core factors used in validated risk models. Age tends to be the single largest driver, which is why risk estimates rise steeply as people move into their 50s, 60s, and beyond.
The modifiable factors are the ones worth focusing on: quitting smoking, managing blood pressure, improving cholesterol (through diet, exercise, or medication), and managing blood sugar if you have diabetes. Each of these has strong evidence behind it for reducing cardiovascular risk over time.
Current guidelines generally use a 10-year risk of 7.5% or higher as a key threshold for discussing statin therapy, with the conversation often starting even earlier at the 5% "borderline" tier depending on other individual factors. This is a decision to make with a doctor, not from a calculator alone.
Not a diagnostic or clinical tool: This is a simplified educational estimate, not the validated Pooled Cohort Equations used in clinical practice, and it does not include every factor a doctor would consider (such as family history, kidney function, or inflammatory markers). Use the official ACC/AHA calculator and talk to a doctor for an actual clinical risk assessment and any treatment decisions.