Testosterone Deficiency Total Free Ratio Threshold

Diagnose testosterone deficiency using total testosterone (<300 ng/dL) and free testosterone (<65 pg/mL) thresholds. SHBG influences free testosterone calculation and clinical relevance.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Diagnose testosterone deficiency using total testosterone (<300 ng/dL) and free testosterone (<65 pg/mL) thresholds. SHBG influences free testosterone calculation and clinical relevance

Each component has a specific meaning:

  • Free testosterone thresholds — The free testosterone thresholds recorded for the scenario being assessed.

Note: Interpret the testosterone deficiency threshold result against the thresholds and context described above.

How to Use

Enter the free testosterone thresholds for the scenario you are assessing. Diagnose testosterone deficiency using total testosterone (<300 ng/dL) and free testosterone (<65 pg/mL) thresholds. SHBG influences free testosterone calculation and clinical relevance. Use the testosterone deficiency threshold result to inform your calculation.

Frequently Asked Questions