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Testosterone (Total) Unit Converter
Total Testosterone measures both the free hormone and the hormone bound to proteins (SHBG and Albumin). It is the primary screening test for evaluating androgen status in men (Hypogonadism) and androgen excess in women (PCOS, tumors).
Clinical reporting units vary globally. The United States typically uses nanograms per deciliter (ng/dL), while many other countries use the SI unit nanomoles per liter (nmol/L). This converter allows for quick standardization between these formats.
Mass Units (US)
StandardNanograms per deciliter is the most common unit in the USA.
SI Units / Molar
Nanomoles per liter (International Standard).
Clinical Context
Reference Ranges (Adult Males):
• Normal: Typically 264 – 916 ng/dL (9.2 – 31.8 nmol/L).
• Hypogonadism: Often defined as < 300 ng/dL (< 10.4 nmol/L) on two separate morning draws.
Reference Ranges (Adult Females):
• Normal: 15 – 70 ng/dL (0.5 – 2.4 nmol/L).
Conversion Logic:
Molecular Weight of Testosterone: 288.42 g/mol.
1 nmol/L ≈ 28.84 ng/dL.
1 ng/dL ≈ 0.0347 nmol/L.
Clinical References
How to Use This Converter
Follow these steps to normalize Total Testosterone values.
Enter Values
Input your laboratory result into the corresponding unit field (e.g., ng/dL).
Automatic Conversion
The calculator converts between mass units and the SI molar unit (nmol/L) using the molecular weight of 288.42.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
No. This is for Total Testosterone. Free Testosterone levels are much lower (usually measured in pg/mL or pmol/L) and require a different conversion factor.
To convert from ng/dL to nmol/L, multiply by 0.0347. To convert from nmol/L to ng/dL, multiply by 28.84.