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Glossary Health & Fitness

Cholesterol ratio

The cholesterol ratio is total cholesterol divided by HDL ("good") cholesterol; a lower ratio generally indicates lower heart-disease risk.

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In more detail

Total 200 and HDL 50 give a ratio of 4.0 and non-HDL cholesterol of 150. With triglycerides of 150, LDL is estimated by the Friedewald formula as 200 − 50 − 150/5 = 120 mg/dL. Targets are set by a clinician.

Try these tools

Cholesterol Ratio Calculator

Calculate your total cholesterol to HDL ratio, non-HDL cholesterol and LDL to HDL ratio, with an LDL estimate from triglycerides.

See also

  • Glossary A1C (HbA1c)
    A1C is a blood test showing average blood sugar over the past two to three months, reported as the percentage of hemoglobin carrying sugar.
  • Cheat sheet Medical Formulas Cheat Sheet
    A1C to glucose, blood pressure bands, cholesterol, kidney function, QTc, blood alcohol and IV drip rate with worked examples.
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