Copper µmol/L → µg/dL
Convert copper from µmol/L to µg/dL
Sources last checked: 2026-11-03
Copper µmol/L → µg/dL
Convert copper from µmol/L to µg/dL
Converts units only; reference ranges depend on the laboratory, the assay and the patient.
What is the Copper µmol/L → µg/dL?
Copper results in µmol/L — the SI unit used in the UK and much of the international literature — are converted here into µg/dL, the unit of laboratories in the USA, Turkey and some German-speaking countries. The converter divides by 0.1574 (equivalent to multiplying by about 6.35), derived from the atomic mass of copper (63.55 g/mol). It applies to total serum or plasma copper.
When to use it
- Converting a µmol/L result from a British report or SI-based paper into µg/dL
- Using US literature or textbook tables that list copper in µg/dL
- Preparing a non-caeruloplasmin-bound copper calculation when caeruloplasmin is reported in mg/dL
When not to use it
- 24-hour urinary copper or hepatic copper content
- Caeruloplasmin itself, which is a protein concentration, not a copper concentration
How it is calculated
Copper (µg/dL) = copper (µmol/L) ÷ 0.1574
Clinical pearls and limitations
- Converts units only; reference ranges depend on the laboratory, the assay and the patient.
- 1 µmol/L ≈ 6.35 µg/dL; 15 µmol/L ≈ 95 µg/dL.
- Round µg/dL to whole numbers.
- Because copper travels mainly on caeruloplasmin, an acute-phase protein, a raised value during infection or inflammation is not evidence of copper overload.
- Low copper with low caeruloplasmin can point to deficiency or to Wilson disease; telling them apart needs urinary copper, clinical findings and specialist work-up.
Frequently asked questions
How do I convert copper from µmol/L to µg/dL?
Divide by 0.1574. For example, 16 µmol/L ÷ 0.1574 = 102 µg/dL and 9 µmol/L ÷ 0.1574 = 57 µg/dL.
What is 1 µmol/L of copper in µg/dL?
About 6.35 µg/dL, since one micromole of copper weighs 63.55 µg and a litre holds 10 dL.
Why is total serum copper often low in Wilson disease?
Most circulating copper is carried by caeruloplasmin, which is frequently reduced in Wilson disease. Total copper therefore falls even though tissue copper and the non-caeruloplasmin-bound fraction are increased.
Evidence and guidelines
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<p><a href="https://medelix.ai/en/calculators/copper-umol-l-to-ug-dl">Copper µmol/L → µg/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.