How does the Heart Disease Risk Calculator work?

This calculator uses a modified Framingham CHD Risk Score to assess 8 key factors: age, gender, total cholesterol, HDL cholesterol, systolic blood pressure, antihypertensive use, diabetes, and smoking status. It estimates your 10-year risk of coronary heart disease.

What's the difference between total cholesterol and HDL?

Total cholesterol (TC) includes LDL (bad cholesterol) and HDL (good cholesterol). Higher HDL is better (>40 mg/dL men, >50 mg/dL women) as it helps clear LDL from arteries. The TC/HDL ratio is an important cardiovascular risk indicator.

How can I lower my heart disease risk?

1) Keep blood pressure below 120/80; 2) Quit smoking (risk drops 50% in 1 year); 3) Keep LDL <100 mg/dL; 4) Maintain healthy weight (BMI <25); 5) Exercise 150 min/week; 6) Mediterranean diet; 7) Manage stress; 8) Regular check-ups.

Is this calculator accurate?

Based on large-scale epidemiological data, this calculator provides a reliable risk assessment. However, it does not replace professional medical diagnosis. Consult your doctor for personalized evaluation.

Completely safe. All calculations are done locally in your browser. Your health data is never uploaded to any server. Works offline.

Heart Disease Risk Calculator

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🩺 Health Assessment

Based on a modified Framingham CHD model, this tool assesses 8 key factors including cholesterol, blood pressure, and lifestyle to estimate your 10-year coronary heart disease risk. For reference only.

⚠️ Medical Disclaimer: This tool provides risk assessment reference only. Seek immediate care for chest pain or breathing difficulty.

📋 Enter Your Health Data

Age (years)

20-100 years

Gender

Total Cholesterol TC (mg/dL)

Normal <200, borderline 200-239, high ≥240

HDL Cholesterol (mg/dL)

Good cholesterol, men >40, women >50

Systolic BP (mmHg)

Normal <120

On BP Medication

Diabetes

Smoking Status

📖 About CHD Risk Assessment

What is Coronary Heart Disease?

CHD occurs when coronary arteries become narrowed by plaque buildup, reducing blood flow to the heart. It's the leading cause of death worldwide (~9 million annually). Early risk assessment and management are key to prevention.

Cholesterol & Heart Health

LDL (bad): Lower is better, ideal <100 mg/dL.
HDL (good): Higher is better, men >40, women >50 mg/dL.
TC/HDL ratio: Ideal <3.5, >5.0 is high risk. Each 1 unit reduction lowers CHD risk ~20%.

Modifiable vs Fixed Risk

Modifiable: Hypertension, high cholesterol, smoking, diabetes, obesity, inactivity, poor diet.
Fixed: Age, gender, family history. The good news: 80% of heart disease events are preventable through lifestyle changes!

❤️ Heart Disease Risk Calculator

📋 Enter Your Health Data

📊 Results

Risk Breakdown

💡 Personalized Recommendations

📖 About CHD Risk Assessment

What is Coronary Heart Disease?

Cholesterol & Heart Health

Modifiable vs Fixed Risk

❤️ Heart Disease Risk Calculator

📋 Enter Your Health Data

📊 Results

Risk Breakdown

💡 Personalized Recommendations

📖 About CHD Risk Assessment

What is Coronary Heart Disease?

Cholesterol & Heart Health

Modifiable vs Fixed Risk

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