PSA Density (PSAD) = serum PSA (ng/mL) ÷ prostate volume (mL). Normal values are typically <0.15 ng/mL². Higher values suggest greater prostate cancer risk. PSAD is more specific than PSA alone.

What is a normal PSA density?

PSAD 0.25 is high risk. Final diagnosis requires DRE, MRI, and biopsy.

How is prostate volume measured?

Prostate volume is typically measured via transrectal ultrasound (TRUS) or MRI using the ellipsoid formula: volume = length × width × height × 0.52. Normal adult prostate is about 20-30 mL.

PSA Density Calculator | Free ToolBase

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Free online PSA Density Calculator. Calculate prostate-specific antigen density from PSA value and prostate volume. Prostate cancer risk assessment tool.

Zero dependencies · Works offline

📋 Input Parameters

PSA Value (ng/mL)

Prostate Volume (mL)

💡 Volume = length × width × height × 0.52 (ellipsoid formula)

📖 About PSA Density

PSA Density = serum PSA (ng/mL) ÷ prostate volume (mL). Normal: <0.15 ng/mL² = low risk; 0.15-0.25 = intermediate risk; >0.25 = high risk. PSAD is more specific than PSA alone.

⚠️ Important: This tool is for informational purposes only. Elevated PSA can occur with prostatitis and BPH. Consult your physician for diagnosis.

🔬 PSA Density Calculator

📋 Input Parameters

📖 About PSA Density