PSA density
PSA density (Benson 1992): serum PSA divided by prostate volume (ng/mL/cc); above 0.15 raises suspicion for clinically significant cancer.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Serum PSA
- 6 ng/mL
- Prostate volume
- 30 cc
Result: PSA density 0.2 ng/mL/cc (PSA 6 / volume 30 cc): above 0.15, raising suspicion for clinically significant cancer.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Reading
- above 0.15 ng/mL/cc raises suspicion for clinically significant cancer and helps refine biopsy decisions in the PSA gray zone.
What you enter
- Serum PSA
- Prostate volume
How this is calculated
- Formula
- PSA density = serum PSA (ng/mL) / prostate volume (cc).
Benson MC, Whang IS, Pantuck A, et al. Prostate specific antigen density: a means of distinguishing benign prostatic hypertrophy and prostate cancer. J Urol. 1992;147(3 Pt 2):815-816. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.