Normal & Average Testosterone Levels by Age – Ultimate Chart

Testosterone, often referred to as the “male hormone,” plays a vital role in the development and maintenance of male characteristics. It is not only responsible for physical attributes such as muscle mass, facial hair, and a deep voice, but also influences various bodily functions, including sexual health, bone density, mood regulation, and energy levels.

In this blog post, we aim to provide you with a comprehensive chart of normal and average testosterone levels by age. Understanding the expected range of testosterone levels at different stages of life can help individuals identify potential imbalances and take appropriate steps for their overall well-being.

Whether you’re a teenager experiencing the effects of puberty or an older adult concerned about age-related changes, this guide will equip you with valuable insights into testosterone levels across the lifespan.

What Is Testosterone?

Before delving into the specifics of testosterone levels at different ages, let’s first define testosterone and its role in the body. Testosterone is a hormone produced primarily in the testes in males and, to a lesser extent, in the ovaries and adrenal glands in females. It belongs to a class of hormones called androgens.

Testosterone plays a crucial role in numerous bodily functions beyond the development of male characteristics. It contributes to the regulation of libido, bone density, muscle mass, fat distribution, red blood cell production, and even cognitive functions. It serves as a key player in the intricate web of hormones that orchestrate our overall health and well-being.

Testosterone Levels in Infants and Children

During infancy and childhood, testosterone levels are relatively low in both males and females. However, even at this stage, there are notable differences between the sexes. In males, testosterone levels rise slightly during the first few months after birth, leading to the development of male genitalia.

These levels remain low throughout childhood until puberty. In females, testosterone levels are also present, but at much lower concentrations compared to males. It plays a role in supporting normal growth, bone development, and other physiological processes.

Testosterone Levels in Adolescence

testosterone levels in both males and females

Ah, puberty—the stage when testosterone levels surge and bring about significant changes in both males and females. In males, this surge in testosterone triggers the development of secondary sexual characteristics, such as the growth of facial and body hair, deepening of the voice, and an increase in muscle mass. These changes often coincide with the growth spurt that adolescents experience.

Furthermore, testosterone contributes to the maturation of the male reproductive system, including the enlargement of the testes and the onset of sperm production. Alongside these physical changes, testosterone also affects mood and behavior, often leading to heightened aggression and increased sexual desire.

In females, although testosterone levels rise during puberty, they remain significantly lower than in males. However, it still plays a role in the development of bone mass and muscle strength, contributing to overall health and vitality.

Testosterone Levels in Young Adults (20s and 30s)

During the 20s and 30s, testosterone levels typically reach their peak in males. This period is often associated with high energy levels, sexual vigor, and optimal physical performance. Healthy testosterone levels are crucial during this phase for maintaining muscle mass, supporting bone density, and preserving overall well-being. However, it’s important to note that testosterone levels can vary among individuals.

While there is an average range for testosterone levels in young adults, some men may naturally have higher or lower levels without it being cause for concern. It’s essential to consider individual variations and pay attention to any symptoms of testosterone imbalance.

Testosterone Levels in Middle-Aged Men (40s and 50s)

Testosterone Levels in Middle-Aged Men

As men reach their 40s, testosterone levels begin to gradually decline. This decline is a natural part of the aging process, often referred to as andropause or male menopause. While the decrease in testosterone is normal, it can have various effects on physical and emotional well-being.

Symptoms of low testosterone, also known as hypogonadism, may include fatigue, decreased libido, weight gain, loss of muscle mass, mood swings, and decreased cognitive function. It’s important to note that these symptoms can be caused by other factors as well, so consulting a healthcare professional for accurate testing and diagnosis is crucial.

Testosterone Levels in Older Men (60s and Beyond)

As men progress into their 60s and beyond, testosterone levels continue to decline, albeit at a slower rate than during middle age. This decline is often associated with the aging process and can lead to a range of health concerns. Low testosterone levels in older men have been linked to increased risk of osteoporosis, reduced muscle strength, cognitive decline, and cardiovascular issues.

While testosterone replacement therapy (TRT) is an option for some individuals, it is not suitable for everyone. The decision to pursue TRT should be made in consultation with a healthcare professional, considering the potential benefits and risks.

Age Range Average Testosterone Levels (ng/dL)
Infants and Children (0-9 years) 1-10 ng/dL
Puberty (10-14 years) 12-1200 ng/dL
Adolescence (15-19 years) 300-1200 ng/dL
Young Adults (20s) 300-1000 ng/dL
Young Adults (30s) 300-950 ng/dL
Middle-Aged Men (40s) 200-900 ng/dL
Middle-Aged Men (50s) 200-800 ng/dL
Older Men (60s) 200-700 ng/dL
Older Men (70s and beyond) 200-600 ng/dL

Factors Affecting Testosterone Levels

maintain healthy testosterone levels

Testosterone levels can be influenced by various factors, both internal and external. Lifestyle choices, such as diet, exercise, and stress management, can have a significant impact on testosterone production.

Adequate sleep, a balanced diet rich in essential nutrients, regular physical activity, and stress reduction techniques can help maintain healthy testosterone levels. Additionally, certain medical conditions and medications can affect testosterone levels. Conditions such as obesity, diabetes, and chronic illnesses can contribute to decreased testosterone production.

Medications such as corticosteroids, opioids, and some psychiatric medications may also influence testosterone levels. If you suspect an underlying medical condition or suspect that medication may be impacting your testosterone levels, consulting a healthcare professional is essential.

Health Implications of Low Testosterone

Low testosterone levels can have several health implications beyond the physical symptoms mentioned earlier. It has been associated with an increased risk of cardiovascular disease, metabolic disorders, including insulin resistance and type 2 diabetes, and even mental health concerns such as depression and cognitive decline.

If you suspect low testosterone levels or are experiencing symptoms associated with hypogonadism, it’s crucial to consult with a healthcare professional. They can evaluate your symptoms, perform necessary tests, and provide appropriate guidance and treatment options.

Testing and Measuring Testosterone Levels

To accurately assess testosterone levels, various testing methods are available. Blood tests are the most common and reliable method, measuring the total testosterone level in the blood.

However, measuring free testosterone, which is the testosterone available for use by the body, may provide more accurate information about hormone levels. It’s important to keep in mind that testosterone levels can vary throughout the day, with the highest levels typically in the morning.

Therefore, it’s recommended to conduct testing in the morning hours for more accurate results. Consulting a healthcare professional is crucial for proper testing and interpretation of the results.

Lifestyle Strategies to Maintain Healthy Testosterone Levels

While testosterone levels naturally decline with age, there are lifestyle modifications that can help maintain optimal levels and overall well-being. Here are some strategies to consider:

  • Diet: Include a balanced diet rich in essential nutrients, such as zinc, vitamin D, and healthy fats. Opt for whole foods, plenty of fruits and vegetables, lean proteins, and healthy fats like avocados and nuts.
  • Exercise: Engage in regular physical activity, including both resistance training and cardiovascular exercises. Strength training can help stimulate testosterone production and promote muscle growth. Stress Management: Implement stress reduction techniques, such as meditation, deep breathing exercises, or engaging in hobbies and activities that bring you joy. High-stress levels can contribute to hormonal imbalances.
  • Adequate Sleep: Prioritize quality sleep to support hormone regulation and overall well-being. Aim for 7-9 hours of uninterrupted sleep each night. Maintain a Healthy Weight: Obesity and excess body fat can contribute to lower testosterone levels. Focus on maintaining a healthy weight through a balanced diet and regular exercise.


What are normal testosterone levels in men by age?

Testosterone is measured in nanograms per deciliter (ng/dL). According to the American Urological Association, a man should have a testosterone level of at least 300 ng/dL. The acceptable testosterone levels for men by age group are:

  • Children: 75-400 ng/dL (first couple of months), 7-130 ng/dL (10 to 11 years old)
  • Early Teens: 7-800 ng/dL (12 to 13 years old), 100-1,200 ng/dL (15 to 16 years old)
  • Late Teens: 300-1,200 ng/dL (17 to 18 years old)
  • Adults: 240-950 ng/dL (19 years and older)

How is testosterone level tested?

To confirm your testosterone levels, a doctor will have to perform a blood test. The best time to test testosterone is in the morning between 7 and 10 AM because that’s when your testosterone levels are at their highest.

What are the treatments for low testosterone?

If you have low testosterone production, your doctor can recommend different solutions including low testosterone therapy. This can come in different forms — an injection, patches, creams, gels, or pellets.

What are some natural ways to increase testosterone?

Regular exercise, changing your diet, and lowering your stress levels can help improve your testosterone levels.

What are the potential risks of Testosterone Replacement Therapy?

While Testosterone Replacement Therapy is useful for a majority of men with testosterone issues, it isn’t for everyone. Men with certain types of cancer (prostate cancer, for example) or severe kidney, heart, or liver problems should find alternate testosterone treatments.

When should you have your testosterone level checked?

Doctors recommend that men should get their testosterone levels checked when they reach 35 and every 5 years after that.


symptoms associated with hormonal imbalances

Understanding the normal and average testosterone levels by age is crucial for individuals to recognize potential imbalances and take appropriate steps for their overall well-being. From infancy to older age, testosterone plays a vital role in various aspects of health, from physical development to cognitive function.

Maintaining balanced testosterone levels through a healthy lifestyle, regular exercise, stress management, and adequate sleep can help promote optimal well-being. If you suspect low testosterone levels or experience symptoms associated with hormonal imbalances, it’s important to consult a healthcare professional for accurate testing and guidance.

By being aware of your testosterone levels and taking proactive steps to maintain a healthy balance, you can optimize your overall well-being and vitality throughout the different stages of life.