LDL cholesterol mmol/L → mg/dL
Convert ldl cholesterol from mmol/L to mg/dL
Sources last checked: 2026-11-03
LDL cholesterol mmol/L → mg/dL
Convert ldl cholesterol from mmol/L to mg/dL
Converts units only; reference ranges depend on the laboratory, the assay and the patient.
What is the LDL cholesterol mmol/L → mg/dL?
This converter turns LDL cholesterol from mmol/L, the SI unit in UK, Scandinavian and Dutch reports and in many European guidelines, into mg/dL, the unit most German, Austrian, Turkish and US labs print. It divides by 0.0259, the cholesterol factor in the AMA Manual of Style SI table; dividing by 0.0259 is the same as multiplying by about 38.61.
When to use it
- Translating an LDL target or threshold from an SI-based guideline into the mg/dL unit of the local lab
- Reading a discharge letter or study from a country that reports in mmol/L
- Entering LDL into a tool or form that expects mg/dL
When not to use it
- Triglycerides in mmol/L — they need the triglyceride factor
- Deciding on therapy from the converted number alone; targets depend on risk category and guideline
How it is calculated
LDL-C (mg/dL) = LDL-C (mmol/L) ÷ 0.0259
Clinical pearls and limitations
- Converts units only; reference ranges depend on the laboratory, the assay and the patient.
- Some tables multiply by 38.67, derived directly from cholesterol's molar mass of 386.7 g/mol; the difference from dividing by 0.0259 (≈ 38.61) is below 0.2 %.
- A guideline value given in mmol/L to one decimal is itself rounded — the mg/dL equivalent is approximate, not a hidden extra digit of precision.
- Measured (direct) and calculated LDL use the same conversion; their agreement depends on the triglyceride level and the formula.
- Converting back and forth repeatedly accumulates rounding error; keep the original value.
Frequently asked questions
How do I convert LDL from mmol/L to mg/dL?
Divide by 0.0259 (or multiply by about 38.61). For example, 3.0 mmol/L ÷ 0.0259 = 115.8, about 116 mg/dL.
What is 1.4 mmol/L LDL in mg/dL?
1.4 ÷ 0.0259 = 54.05, about 54 mg/dL.
Why do some converters give slightly different mg/dL values?
They use either 38.61 (the reciprocal of 0.0259) or 38.67 (from the molar mass). Both are accepted; results differ by less than 1 mg/dL at usual LDL levels.
Evidence and guidelines
Have a follow-up question?
Medelix answers clinical questions from current guidelines and studies — every statement with its source.
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<p><a href="https://medelix.ai/en/calculators/ldl-cholesterol-mmol-l-to-mg-dl">LDL cholesterol mmol/L → mg/dL calculator by Medelix</a></p>For healthcare professionals and medical students. These tools support, and do not replace, clinical judgement. Always check results against the original source and your local protocols.