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Understand Total Cholesterol to HDL Ratio

Total Cholesterol to HDL Ratio

Heart & circulation markers

What the test generally measures, and what to ask about it.

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Updated Jul 13, 2026

What is Total Cholesterol to HDL Ratio?

A simple comparison of your total cholesterol against your protective HDL cholesterol, written as a single ratio.

This ratio shows how much of your cholesterol is the protective kind versus the rest, and can be a helpful shorthand for heart-health risk alongside your other lipid numbers. You calculate it by dividing total cholesterol by HDL. A higher ratio (relatively more total cholesterol compared with protective HDL) can be associated with a greater long-term risk of heart and blood-vessel disease. It is a value calculated from the standard lipid panel rather than a stand-alone screening target.

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References

Clinical "Cholesterol ratio or non-HDL cholesterol: Which is most important?" Mayo Clinic. www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/expert-answers/cholesterol-ratio/faq-20058006.

About our sources

Clinical / professional

Medical societies, specialty colleges, and professional associations whose consensus statements reflect clinical practice standards.

Peer-reviewed research

Original research articles and systematic reviews published in indexed journals and verified through PubMed or DOI.

History of updates

Published · Jul 13, 2026
First published; written and independently fact-checked against the cited sources.

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