7-Dehydrocholesterol unit converter
7-Dehydrocholesterol in plasma (Smith-Lemli-Opitz syndrome work-up)
Also known as: 7-Dehydrocholesterol plasma, 7-Dehydrocholesterol Plasma
Converter
Enter a value in any unit and all other units fill in.
Worked example
1.25 µmol/L (middle of the reference range) = 0.481 mg/L
Conversion formulas
| mg/L | mg/L = µmol/L × 0.3846 | µmol/L = mg/L × 2.6 |
|---|---|---|
| µg/dL | µg/dL = µmol/L × 38.46 | µmol/L = µg/dL × 0.026 |
| µg/L | µg/L = µmol/L × 384.6 | µmol/L = µg/L × 0.0026 |
| nmol/L | nmol/L = µmol/L × 1000 | µmol/L = nmol/L × 0.001 |
Good to know
7-Dehydrocholesterol in plasma is reported in µmol/L or in mg/L. The limit shown is an upper limit for adults.
- mg/L × 2.60 = µmol/L (exact factor 2.5998).
- Protect the sample from light and send it frozen or cooled as the laboratory asks. Sterol values are often also read as a ratio to cholesterol.
Reference range
| Unit | Adults |
|---|---|
| mg/L | 0 – 0.9616 |
| µmol/L | 0 – 2.5 |
| µg/dL | 0 – 96.16 |
| µg/L | 0 – 961.6 |
| nmol/L | 0 – 2500 |
Source: Newcastle Hospitals Laboratories: Plasma 7-dehydrocholesterol, desmosterol and lathosterol · Last reviewed: 2026-10-19
Note from the source: Adults (18 years and over): less than 2.5 µmol/L (Newcastle Hospitals Laboratories). Children have different limits; protect the sample from light. Reference ranges are laboratory- and method-specific