Toe-Brachial Index (TBI)
Toe-Brachial Index (TBI) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
Open the Toe-Brachial Index (TBI) → Runs in your browser. No signup, no tracking.
What this is
Toe-Brachial Index (TBI) is one of 230 deterministic tools in Sophie Well's Clinical Math & Conversions group. Toe-Brachial Index (TBI) - a deterministic tool in Sophie Well's Clinical Math & Conversions group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Aboyans V, Criqui MH, Abraham P, et al. Measurement and interpretation of the ankle-brachial index. Circulation. 2012;126(24):2890-2909. Read the source ↗
Worked example: TBI 0.42 — below 0.70: abnormal, supports peripheral arterial disease.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.