Testosterone Shbg Ratio Calculator




Hormones play a vital role in maintaining various functions within the human body, and testosterone is one of the most important hormones, particularly in men. The amount of testosterone circulating in the bloodstream can be influenced by a protein called Sex Hormone-Binding Globulin (SHBG). Understanding the relationship between testosterone and SHBG is crucial for assessing hormonal balance and its potential impacts on health. The Testosterone SHBG Ratio Calculator is a valuable tool that simplifies the calculation of this ratio, providing insights into hormonal health.


The formula for calculating the Testosterone SHBG Ratio is relatively simple:

Testosterone SHBG Ratio=Total TestosteroneSHBG


  • Total Testosterone represents the total amount of testosterone in the bloodstream, often measured in nanograms per deciliter (ng/dL).
  • SHBG is the concentration of Sex Hormone-Binding Globulin in the blood, typically measured in nanomoles per liter (nmol/L).

How to Use?

Using the Testosterone SHBG Ratio Calculator is a straightforward process:

  1. Data Collection: Obtain data on the total testosterone level and the concentration of SHBG in the blood. These values can typically be obtained through blood tests.
  2. Data Input: Enter the values of Total Testosterone and SHBG into the calculator, making sure the units are consistent (e.g., ng/dL for testosterone and nmol/L for SHBG).
  3. Calculate: Click the “Calculate” button, and the calculator will provide you with the Testosterone SHBG Ratio.


Let’s explore a practical example to illustrate how the Testosterone SHBG Ratio Calculator works:

Suppose a male individual has a total testosterone level of 500 ng/dL and an SHBG concentration of 30 nmol/L. Calculate the Testosterone SHBG Ratio.

  1. Enter 500 ng/dL as the Total Testosterone and 30 nmol/L as the SHBG concentration into the calculator.
  2. Click “Calculate.”

The Testosterone SHBG Ratio Calculator will yield a ratio of approximately 16.67. This means that for every 1 unit of SHBG, there are 16.67 units of total testosterone circulating in the bloodstream.


  1. What does the Testosterone SHBG Ratio indicate?
    • The Testosterone SHBG Ratio provides insights into how much of the circulating testosterone is bound to SHBG. A higher ratio may indicate a larger portion of free (unbound) testosterone, which can be biologically active.
  2. Why is the ratio important for hormonal health assessment?
    • The ratio can help healthcare providers assess the balance between bound and free testosterone, which can impact various aspects of health, including sexual function, muscle mass, and mood.
  3. What factors can influence the Testosterone SHBG Ratio?
    • Age, gender, and certain medical conditions can influence the ratio. Additionally, changes in SHBG levels can affect the ratio even if the total testosterone remains relatively stable.


The Testosterone SHBG Ratio Calculator is a valuable tool for healthcare professionals and individuals interested in understanding their hormonal health. By assessing the ratio of total testosterone to SHBG, one can gain insights into potential hormonal imbalances and their implications. In the realm of men’s health and endocrinology, where hormonal balance is crucial for overall well-being, this calculator serves as an informative resource for assessing and addressing testosterone-related health concerns.


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