Prostate Volume Calculator
Calculate prostate volume instantly using ellipsoid and bullet formulas. Input length, width, height in cm. Get accurate ellipsoid (L×W×H×π/6) and bullet (L×W×H×5π/24) volumes in cc. Essential for clinical assessment.
About the Prostate Volume Calculator
Principle:
This calculator estimates prostate volume using two validated geometric models:
- Ellipsoid Formula:
Volume = Length × Width × Height × π / 6
Models the prostate as a symmetrical ellipsoid. - Bullet Formula (Cylinder + Half-Ellipsoid):
Volume = Length × Width × Height × 5π / 24
Better represents the prostate’s asymmetric shape (validated by radiology studies).
How to Use:
- Enter prostate dimensions in centimeters (cm):
- Length: Anteroposterior measurement (front-to-back).
- Width: Transverse measurement (side-to-side).
- Height: Craniocaudal measurement (top-to-bottom).
- Results display instantly:
- Ellipsoid Volume (cc).
- Bullet Volume (cc) – clinically preferred method.
Clinical Notes:
- Bullet volume correlates better with imaging (e.g., TRUS) and is recommended for brachytherapy planning (per Radiology 2009;250).
- Always verify calculations with a healthcare professional. Not a substitute for clinical judgment.
References:
- Ellipsoid Volume Calculation
- MacMahon PJ et al. Modified prostate volume algorithm improves transrectal US volume estimation. Radiology 2009;250.