What Is a Normal Testosterone Level?
Normal ranges: Total Testosterone (Male) 264–916 ng/dL; Free Testosterone (Male) 5–21 ng/dL; Total Testosterone (Female) 15–70 ng/dL. Values outside these ranges may point to a condition that needs further evaluation.
Reference Range Table
| Marker | Low | Normal | High |
|---|---|---|---|
| Total Testosterone (Male) | Below 264 ng/dL — low testosterone | 264–916 ng/dL | Above 916 ng/dL — may indicate supplementation |
| Free Testosterone (Male) | Below 5 ng/dL — low bioavailable T | 5–21 ng/dL | Above 21 ng/dL |
| Total Testosterone (Female) | Below 15 ng/dL | 15–70 ng/dL | Above 70 ng/dL — may suggest PCOS |
What Affects Your Results
Time of day (testosterone peaks between 7-10 AM), age (declines ~1% per year after 30), sleep quality, obesity, medications (opioids, steroids), stress, and acute illness.
When to Retest
For diagnosis, two separate morning draws are recommended. If on TRT, test every 3-6 months. Otherwise, annually after age 40.
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