Testosterone Free

A testosterone levels test measures the amount of the hormone testosterone in a sample of your blood. Hormones are chemical messengers in your bloodstream that control the actions of certain cells or organs.

A testosterone levels test may be used with other tests to help your provider find the cause of abnormal testosterone levels.

Source: MedlinePlus, U.S. National Library of Medicine

Normal range

92 published ranges, each from a named source

2.37.9 ng/dL drawn: all ages · Mayo Clinic Laboratories (Pediatric Test Catalog)

Normal: 2.29–7.91 ng/dL
Female: 2.29–7.91 ng/dL
Male · 18 y+: 47–244 pg/mL
Male: 70–300 pg/mL

Ranges from ARUP Laboratories Test Directory, American Board of Internal Medicine (Laboratory Test Reference Ranges), Mayo Clinic Laboratories (Pediatric Test Catalog), Mayo Clinic Laboratories (Test Catalog).

All source ranges (92)

Source	Sex	Age	Range
American Board of Internal Medicine (Laboratory Test Reference Ranges)	Male	all ages	70–300 pg/mL
ARUP Laboratories Test Directory	Female	1 y – 6 y	<0.6 pg/mL
ARUP Laboratories Test Directory	Female	7 y – 9 y	0.6–1.8 pg/mL
ARUP Laboratories Test Directory	Male	1 y – 6 y	<0.6 pg/mL
ARUP Laboratories Test Directory	Male	7 y – 9 y	0.1–0.9 pg/mL
ARUP Laboratories Test Directory	Male	14 y – 15 y	3–138 pg/mL
ARUP Laboratories Test Directory	Male	16 y – 17 y	38–173 pg/mL
ARUP Laboratories Test Directory	Male	18 y+	47–244 pg/mL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	all ages	2.29–7.91 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 35 y	4.85–19 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 65 y	3.67–13.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 50 y	4.26–16.4 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 45 y	4.46–17.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 80 y	3.08–11.3 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 90 y	2.69–9.61 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 25 y	5.25–20.7 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 70 y	3.47–13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 60 y	3.87–14.7 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 55 y	4.06–15.6 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 30 y	5.05–19.8 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 75 y	3.28–12.2 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 85 y	2.88–10.5 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 40 y	4.65–18.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	≤ 95 y	2.49–8.76 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	1 d – 15 d	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	16 d – 1 y	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	1 y – 4 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	1 y – 8 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	5 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	6 y	<0.14 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	14 y	0.48–15.3 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	15 y	1.62–17.7 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	16 y	2.93–19.5 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	17 y	4.28–20.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	18 y	5.4–21.8 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	All	19 y	5.36–21.2 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	all ages	2.29–7.91 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	all ages	2.29–7.91 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 80 y	3.08–11.3 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 65 y	3.67–13.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 90 y	2.69–9.61 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 25 y	5.25–20.7 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 50 y	4.26–16.4 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 70 y	3.47–13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 45 y	4.46–17.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 55 y	4.06–15.6 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 80 y	3.08–11.3 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 50 y	4.26–16.4 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 90 y	2.69–9.61 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 25 y	5.25–20.7 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 40 y	4.65–18.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 75 y	3.28–12.2 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 60 y	3.87–14.7 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 65 y	3.67–13.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 60 y	3.87–14.7 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 45 y	4.46–17.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 95 y	2.49–8.76 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 30 y	5.05–19.8 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 30 y	5.05–19.8 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 75 y	3.28–12.2 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 85 y	2.88–10.5 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 35 y	4.85–19 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 55 y	4.06–15.6 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	≤ 85 y	2.88–10.5 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 35 y	4.85–19 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 40 y	4.65–18.1 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 70 y	3.47–13 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	≤ 95 y	2.49–8.76 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	1 d – 15 d	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	1 d – 15 d	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	16 d – 1 y	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	16 d – 1 y	0.2–3.1 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	1 y – 8 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	1 y – 4 y	<0.13 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	1 y – 8 y	<0.13 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	1 y – 4 y	<0.13 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	5 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	5 y	<0.13 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	6 y	<0.14 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	6 y	<0.14 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	14 y	0.48–15.3 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	14 y	0.48–15.3 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	15 y	1.62–17.7 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	15 y	1.62–17.7 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	16 y	2.93–19.5 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	16 y	2.93–19.5 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	17 y	4.28–20.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	17 y	4.28–20.9 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	18 y	5.4–21.8 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	18 y	5.4–21.8 ng/dL
Mayo Clinic Laboratories (Test Catalog)	Female	19 y	5.36–21.2 ng/dL
Mayo Clinic Laboratories (Pediatric Test Catalog)	Female	19 y	5.36–21.2 ng/dL

What an abnormal result can be associated with

A high result: Increased serum testosterone level
A low result: Decreased serum testosterone concentration

Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis: only a clinician can interpret your result in context.

details

Sample: Serum or plasma · LOINC
Part of: Bryan Johnson Blueprint
Listed under: Erectile Dysfunction · Hormones · Male Infertility · Men's Health · Sexual Health · Sexual Problems in Men · Teen Sexual Health · Testicular Disorders
Code: LOINC 2991-8 · pg/mL
Also known as: Testo, Testos, Testost, Testost Free, FR

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