Ankle-Brachial Index Calculator
Compare ankle and arm blood pressure to screen for leg artery disease.
Your result
An ABI below 0.90 is linked to peripheral artery disease. Values above 1.30 can mean stiff, calcified arteries. Both need clinical assessment.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Ankle-Brachial Index Calculator do?
Compare ankle and arm blood pressure to screen for leg artery disease. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: abi test; leg artery disease check; peripheral artery disease screening.