Framingham Risk Calculator

What Is the Framingham Risk Score?

The Framingham risk score estimates 10-year cardiovascular disease risk in adults without known prior cardiovascular disease. It uses age, sex, smoking status, blood pressure treatment, systolic blood pressure, total cholesterol, and HDL cholesterol to produce a percentage risk estimate.

Who Can Use This Calculator?

This tool applies to adults aged 30 to 79 years. It is intended for primary prevention risk estimation, not for patients with established heart disease, stroke, or other atherosclerotic cardiovascular disease. For ASCVD risk using pooled cohort equations, see the Heart Disease Risk Calculator.

Risk Categories

Estimated 10-year risk below 10% is classified as low risk. Risk from 10% to below 20% is intermediate. Risk of 20% or higher is high risk. These bands guide discussions about lifestyle change, blood pressure targets, and statin therapy in shared decision-making with a clinician.

Inputs That Matter Most

Smoking and untreated hypertension strongly increase risk. Lower HDL cholesterol raises risk, while higher HDL is protective. Active blood pressure treatment is accounted for separately from untreated systolic values because treated patients may have different baseline risk.