PSA Density (PSAD) Calculator

Calculate PSA density (PSAD) by dividing serum PSA by prostate volume measured on transrectal ultrasound (TRUS). PSAD >0.15 ng/mL/cc is suspicious for prostate cancer and helps distinguish cancer from benign prostatic hyperplasia.

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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

Calculate PSA density (PSAD) by dividing serum PSA by prostate volume measured on transrectal ultrasound (TRUS). PSAD >0.15 ng/mL/cc is suspicious for prostate cancer and helps distinguish cancer from benign prostatic hyperplasia

Each component has a specific meaning:

  • Benign prostatic hyperplasia — The benign prostatic hyperplasia recorded for the scenario being assessed.

Note: Interpret the psa density result against the thresholds and context described above.

How to Use

Enter the benign prostatic hyperplasia for the scenario you are assessing. Calculate PSA density (PSAD) by dividing serum PSA by prostate volume measured on transrectal ultrasound (TRUS). PSAD >0.15 ng/mL/cc is suspicious for prostate cancer and helps distinguish cancer from benign prostatic hyperplasia. Use the psa density result to inform your calculation.

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Frequently Asked Questions