What is a normal testosterone level for a woman?

A representative adult range is about 8-60 ng/dL for total testosterone and 0.3-1.9 ng/dL for free testosterone, highest in the 20s. Female ranges are not well standardized and vary by laboratory and assay method, so compare your result to your lab range.

Does testosterone decline with age in women?

Yes, gradually. Studies show total and free testosterone fall roughly by half between the early 20s and the 40s. The decline is steady rather than sudden, and unlike estrogen there is no sharp drop at menopause because the ovaries and adrenals keep producing androgens.

What testosterone level is considered high in a woman?

A total testosterone above roughly 60-70 ng/dL, or new rapid symptoms such as facial hair, acne, or scalp hair loss, generally prompts evaluation. A value above about 200 ng/dL or fast-onset virilization is a red flag that needs urgent clinician assessment.

Why is free testosterone measured instead of just total?

Most testosterone is bound to SHBG and albumin; only the free fraction is biologically active. When SHBG is high or low, total testosterone can be misleading, so clinicians often measure free testosterone or calculate it from total testosterone and SHBG.

What is a normal testosterone level for a woman?

A representative adult range is about 8-60 ng/dL for total testosterone and 0.3-1.9 ng/dL for free testosterone, highest in the 20s. Female ranges are not well standardized and vary by laboratory and assay method, so compare your result to your lab range.

Yes, gradually. Studies show total and free testosterone fall roughly by half between the early 20s and the 40s. The decline is steady rather than sudden, and unlike estrogen there is no sharp drop at menopause because the ovaries and adrenals keep producing androgens.

A total testosterone above roughly 60-70 ng/dL, or new rapid symptoms such as facial hair, acne, or scalp hair loss, generally prompts evaluation. A value above about 200 ng/dL or fast-onset virilization is a red flag that needs urgent clinician assessment.

Most testosterone is bound to SHBG and albumin; only the free fraction is biologically active. When SHBG is high or low, total testosterone can be misleading, so clinicians often measure free testosterone or calculate it from total testosterone and SHBG.

Reference-range chart

Testosterone levels in women by age (reference range chart)

Total testosterone in women is roughly 8-60 ng/dL and free testosterone about 0.3-1.9 ng/dL, highest in the late teens and 20s. Levels decline gradually with age — on average about half of peak-20s values by the 40s — without the abrupt drop seen with estrogen at menopause. A total above about 60-70 ng/dL or rapid androgen symptoms warrant evaluation.

Testosterone reference ranges by age

Representative testosterone ranges in women by age and stage. Representative intervals only — values vary by laboratory and assay.
Age / stage	Testosterone	Notes
Reproductive age (teens-30s), total	~8-60 ng/dL	Highest in the late teens and 20s, then a gradual decline
Perimenopause (40s-early 50s), total	~8-60 ng/dL (trending lower)	On average roughly half of peak-20s levels
Postmenopausal, total	~2-45 ng/dL	Ovarian stroma and adrenal DHEA remain sources — no abrupt menopausal drop
Free testosterone (adult women)	~0.3-1.9 ng/dL	Depends heavily on SHBG
When to evaluate	Total > ~60-70 ng/dL, or rapid symptoms	Assess for PCOS or an adrenal cause

How testosterone is measured

Testosterone is measured from a morning blood sample. Assays vary widely, and liquid chromatography-mass spectrometry (LC-MS/MS) is the reference method for the low levels found in women; immunoassays are less reliable here. Total testosterone should be interpreted with SHBG, because high SHBG lowers free (active) hormone despite a normal total. To convert ng/dL to SI units (nmol/L), multiply by 0.0347. Female reference ranges are not well standardized — confirm your lab range with the ordering clinician.

How to read your result

Unlike estrogen, testosterone does not drop suddenly at menopause; it declines slowly across the reproductive years and continues to be produced by the ovaries and adrenal glands afterward.
A "normal" total testosterone can still leave a woman with low free (active) testosterone if her SHBG is high — for example on oral estrogen — so the two are read together.
Mild elevations most often reflect PCOS; a total above about 200 ng/dL or rapid virilization is a red flag for an ovarian or adrenal tumor and needs urgent evaluation.
Because female testosterone assays are poorly standardized, trends over time on the same assay are more informative than a single number.

Related symptom guides

Where to go next

Other by-age charts

Frequently asked questions

What is a normal testosterone level for a woman?: A representative adult range is about 8-60 ng/dL for total testosterone and 0.3-1.9 ng/dL for free testosterone, highest in the 20s. Female ranges are not well standardized and vary by laboratory and assay method, so compare your result to your lab range.
Does testosterone decline with age in women?: Yes, gradually. Studies show total and free testosterone fall roughly by half between the early 20s and the 40s. The decline is steady rather than sudden, and unlike estrogen there is no sharp drop at menopause because the ovaries and adrenals keep producing androgens.
What testosterone level is considered high in a woman?: A total testosterone above roughly 60-70 ng/dL, or new rapid symptoms such as facial hair, acne, or scalp hair loss, generally prompts evaluation. A value above about 200 ng/dL or fast-onset virilization is a red flag that needs urgent clinician assessment.
Why is free testosterone measured instead of just total?: Most testosterone is bound to SHBG and albumin; only the free fraction is biologically active. When SHBG is high or low, total testosterone can be misleading, so clinicians often measure free testosterone or calculate it from total testosterone and SHBG.

Primary medical sources

ClearHormones publishes editorial reference material for education only. Reference ranges vary between laboratories — always interpret your result with the clinician who ordered the test.