Testosterone (free): units, conversion and tracking
Updated
Short answer
Testosterone (free) is reported in pg/mL, ng/dL, pmol/L and nmol/L. 1 ng/dL = 10 pg/mL.
Convert testosterone (free)
Enter a value to see the converted result.
Converts units only and does not interpret a result. For other markers, use the full unit converter.
What is testosterone (free)?
The small fraction of testosterone not bound to proteins; labs measure it directly or calculate it from other results.
BiomarkerHQ groups testosterone (free) under Hormones. On lab reports it can also appear as free testosterone and free t.
Testosterone (free) units and conversion
BiomarkerHQ stores each testosterone (free) result in the unit printed on the report, and charts and compares results in pg/mL.
1 ng/dL = 10 pg/mL
1 pg/mL = 0.1 ng/dL
1 pmol/L = 0.2884 pg/mL
1 pg/mL = 3.467 pmol/L
1 nmol/L = 288.4 pg/mL
1 pg/mL = 0.003467 nmol/L
| ng/dL | pg/mL |
|---|---|
| 2 ng/dL | 20 pg/mL |
| 5 ng/dL | 50 pg/mL |
| 8 ng/dL | 80 pg/mL |
| 10 ng/dL | 100 pg/mL |
| 12 ng/dL | 120 pg/mL |
| 15 ng/dL | 150 pg/mL |
| 20 ng/dL | 200 pg/mL |
| pg/mL | ng/dL |
|---|---|
| 20 pg/mL | 2 ng/dL |
| 50 pg/mL | 5 ng/dL |
| 80 pg/mL | 8 ng/dL |
| 100 pg/mL | 10 ng/dL |
| 150 pg/mL | 15 ng/dL |
| 200 pg/mL | 20 ng/dL |
| 250 pg/mL | 25 ng/dL |
For another value, use the lab unit converter. It converts units only and does not interpret a result.
Before comparing testosterone (free) results
Tracking testosterone (free) over time
In BiomarkerHQ, each testosterone (free) result is saved with its collection date, its unit and the reference range printed on that report. The timeline charts the results across your draws against the range from each of your own reports, and any two draws can be compared side by side.
- Keep the unit printed on each report. Convert only to compare.
- Keep each report's own range with its result. See why ranges differ between labs.
- Compare the same lab and conditions where you can. See how to compare two blood tests.
Frequently asked questions
Which units do labs report testosterone (free) in?
Testosterone (free) is reported in pg/mL, ng/dL, pmol/L and nmol/L. BiomarkerHQ stores each result in the unit printed on the report and uses pg/mL for charts and comparisons.
How do I convert testosterone (free) from ng/dL to pg/mL?
1 ng/dL = 10 pg/mL. For example, 10 ng/dL is 100 pg/mL.
How do I convert testosterone (free) from pg/mL to ng/dL?
1 pg/mL = 0.1 ng/dL. For example, 100 pg/mL is 10 ng/dL.
What should I check before comparing testosterone (free) results?
Free testosterone is either measured directly or calculated from total testosterone, SHBG and albumin; the methods give different numbers.
Does BiomarkerHQ interpret my testosterone (free) result?
No. It compares a result only with the reference range printed on your own lab report, as below, within or above, and does not say what the result means. Talk to a qualified clinician about your results.
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