10-Year Coronary Heart Disease (CHD) Risk Estimator
Enter your values below to estimate 10-year CHD risk using a Framingham-style point model (adults ages 20-79).
This tool is educational and does not diagnose disease. Always confirm risk and treatment decisions with your clinician.
What this CHD risk calculator measures
Coronary heart disease (CHD) risk calculators estimate the chance of having a major coronary event over the next 10 years. This version uses a classic point-based approach built from long-term population data and includes key cardiovascular factors: age, sex, total cholesterol, HDL, systolic blood pressure, smoking status, and blood pressure treatment.
The goal is simple: turn common clinical numbers into a practical risk estimate so you and your healthcare provider can prioritize prevention. A risk score is not a diagnosis, but it is useful for guiding discussions about lifestyle changes, blood pressure goals, lipid management, and whether medication may be appropriate.
Inputs explained
1) Age and sex
Risk rises with age, and men and women have different baseline risk patterns in the underlying model. That is why age and sex strongly influence the score.
2) Total cholesterol and HDL cholesterol
Total cholesterol contributes to plaque risk, while HDL is generally protective. Higher total cholesterol and lower HDL tend to increase predicted CHD risk.
3) Systolic blood pressure and treatment
Higher systolic pressure increases cardiovascular strain and arterial damage over time. The model gives separate point values depending on whether blood pressure medication is already being used.
4) Smoking and diabetes
Smoking substantially elevates risk. Diabetes is also a major risk amplifier; many guidelines treat diabetes as a high-risk state, so this calculator flags that condition and applies a high-risk floor.
How to interpret your result
- Low risk: under 10% estimated 10-year risk.
- Intermediate risk: 10% to 19% estimated 10-year risk.
- High risk: 20% or greater estimated 10-year risk.
These categories are used to support prevention planning. Depending on your complete health profile, your clinician may also consider family history, LDL level, kidney disease, inflammatory conditions, coronary calcium score, and other markers not included in this simplified model.
Ways to lower coronary risk
- Stop smoking and avoid secondhand smoke.
- Keep blood pressure in target range with lifestyle and medications if needed.
- Improve lipid profile through diet quality, activity, and prescribed therapy when indicated.
- Maintain healthy body weight and waist circumference.
- Exercise regularly (at least 150 minutes/week moderate intensity for most adults).
- Manage diabetes with glucose control, nutrition, and follow-up care.
- Sleep adequately and address chronic stress.
Important limitations
No single calculator captures every person perfectly. Risk models are built from population-level data and may under- or over-estimate risk in some individuals or ethnic groups. Use this estimate as a starting point, not a final verdict.
If you have chest pain, shortness of breath, or symptoms concerning for heart disease, seek urgent medical evaluation rather than relying on a web calculator.