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Androstenedione Unit Converter
Androstenedione is a steroid hormone produced in the adrenal glands and gonads (testes and ovaries). It serves as a key precursor for the biosynthesis of more potent androgens like testosterone and estrogens like estrone and estradiol.
In clinical practice, Androstenedione levels are measured to evaluate adrenal function, distinguish between adrenal and ovarian sources of hyperandrogenism (e.g., in Polycystic Ovary Syndrome – PCOS), and aid in the diagnosis of Congenital Adrenal Hyperplasia (CAH). It exhibits a diurnal rhythm similar to cortisol, peaking in the morning. This converter allows accurate switching between the SI unit (nmol/L) and conventional mass units (ng/dL, ng/mL).
SI Units
RecommendedNanomoles per liter (Standard International).
Conventional Units
Clinical Context
Androstenedione levels vary significantly by age and sex. In adult women, levels typically range from 0.3 – 3.3 ng/mL, often peaking mid-cycle. In men, the typical range is 0.6 – 3.1 ng/mL.
Elevated levels are commonly seen in congenital adrenal hyperplasia (CAH), Cushing’s syndrome, and androgen-secreting tumors. Suppressed levels may occur in adrenal insufficiency or ovarian failure. The conversion factor relies on the molecular weight (286.42 g/mol): 1 ng/dL ≈ 0.0349 nmol/L.
Clinical References
How to Use This Calculator
Follow these steps to get accurate clinical conversions instantly.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., ng/dL). You can use either dot or comma decimals.
Automatic Conversion
The calculator works in real-time. As you type in one field, all other units (like nmol/L) are instantly updated.
Verify Units
Check the SI Units section. nmol/L is the standard for steroid hormones in many countries.
Reset
Use the Clear button to reset all fields before starting a new calculation.
Frequently Asked Questions & Tips
Yes. 1 ng/mL is exactly equal to 1 µg/L.
Yes, like cortisol, androstenedione has a circadian rhythm with highest levels in the morning.