Testosterone Level Calculator
Calculate normal testosterone levels based on age and gender
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About Testosterone Levels
Males and females are born with testosterone. Males start generating higher amounts of testosterone during puberty, which is when their voices begin to deepen and they start experiencing changes in muscle mass, body hair growth, and sex drive.
In men, testosterone levels normally start to decline after the age of 30. Men who have low testosterone levels will usually experience a range of symptoms that affect their sex drive and overall health and well-being. Depression, fatigue, and weight gain are just some issues men can experience when their testosterone levels start to dip below average.
Normal Testosterone Levels By Age
| Age Range | Males (ng/dL) | Females (ng/dL) |
|---|---|---|
| 6 months - 9 years | 7 - 20 | 7 - 20 |
| 10 - 11 years | 7 - 130 | 7 - 44 |
| 12 - 13 years | 7 - 800 | < 75 |
| 14 years | 7 - 1,200 | < 75 |
| 15 - 16 years | 100 - 1,200 | < 75 |
| 17 - 18 years | 300 - 1,200 | 20 - 75 |
| 19+ years | 240 - 950 | 8 - 60 |
| 40 - 49 years | 252 - 916 | 8 - 60 |
| 50 - 59 years | 215 - 878 | 8 - 60 |
What Level of Testosterone is Considered Low?
Low testosterone levels in men are identified as 300 ng/dL or less. Low testosterone levels in women are identified as 25 ng/dL or less in those under 50 years old, and 20 ng/dL or less in those aged 50 and older.
Low Testosterone Symptoms in Men
- Low sex drive
- Erectile dysfunction
- Low sperm count
- Fatigue
- Insomnia
- Bone loss
- Reduced muscle mass
- Increased body fat
- Hair loss
- Development of breast tissue
- Irritability
- Depression
- Cognitive problems
Low Testosterone Symptoms in Women
- Fatigue
- Muscle weakness
- Loss of bone density
- Osteoporosis
- Low sex drive
- Vaginal dryness
- Reduced sexual satisfaction
- Weight gain
- Menstrual irregularities
- Fertility issues