Convert cholesterol values between mg/dL and mmol/L for Total Cholesterol, HDL, LDL, and Triglycerides. Enter a value in either unit and get the converted result immediately — helpful when comparing lab reports from different countries or medical systems.
Converted Value
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Conversion Factor Used
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Reference Range Note
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Cholesterol can be measured in two units depending on where you live. The United States uses mg/dL (milligrams per deciliter), while most other countries — including the UK, Australia, Canada, and much of Europe — use mmol/L (millimoles per liter). Both measure the same thing; they just use different scales.
To convert cholesterol from mmol/L to mg/dL, multiply the mmol/L value by 38.67. For example, 5.0 mmol/L × 38.67 = 193.4 mg/dL. For triglycerides, the conversion factor is different — multiply by 88.57 instead.
To convert cholesterol from mg/dL to mmol/L, divide the mg/dL value by 38.67 (or equivalently, multiply by 0.02586). For triglycerides, divide by 88.57 instead. For example, 200 mg/dL ÷ 38.67 ≈ 5.17 mmol/L.
An LDL of 2.8 mmol/L converts to approximately 108.3 mg/dL (2.8 × 38.67 = 108.28). According to NCEP guidelines, this falls in the 'Near Optimal / Above Optimal' range of 100–129 mg/dL.
Triglycerides have a different molecular weight than cholesterol. Their molecular weight is 885.72 g/mol, which gives a conversion factor of 88.57. Cholesterol's molecular weight is 386.65 g/mol, giving the 38.67 factor. Using the wrong factor will produce an incorrect result.
Desirable total cholesterol is below 200 mg/dL (5.17 mmol/L). HDL should ideally be above 60 mg/dL (1.55 mmol/L). LDL below 100 mg/dL (2.59 mmol/L) is considered optimal. Triglycerides below 150 mg/dL (1.69 mmol/L) are considered normal. Always discuss your personal targets with your doctor.
Yes. The same conversion factor (38.67 for cholesterol, 88.57 for triglycerides) applies to Total Cholesterol, HDL, and LDL alike. Select the appropriate cholesterol type in the converter — use 'Total Cholesterol / HDL / LDL' for any of those three measurements.
Yes. Familial Hypercholesterolemia (FH) is an inherited condition that causes very high LDL cholesterol levels from birth. It affects roughly 1 in 250 people. If you or a close relative have been diagnosed with very high cholesterol at a young age, speak to your doctor about genetic screening.