Ovarian Volume Calculator
The Ovarian Volume Calculator estimates ovarian volume in cubic centimeters (cm³) based on ultrasound measurements of length, width, and height. This tool helps gynecologists and women assess reproductive health and ovarian reserve quickly. Whether you are screening for Polycystic Ovary Syndrome (PCOS), evaluating menopausal status, or checking for pathology, this calculator provides immediate clinical insights.
How Ovarian Volume Is Calculated
Ovarian Volume represents the three-dimensional size of the ovary, which is a vital indicator of fertility and reproductive function. The tool uses the simplified ellipsoid formula, which is the standard method used in medical ultrasound to approximate the volume of irregular, organic shapes.
Volume = 0.523 × Length × Width × Height
Where:
- Length = The longest longitudinal dimension (mm)
- Width = The transverse measurement (mm)
- Height = The anteroposterior depth (mm)
First, you measure the three diameters of the ovary in millimeters. Then, you multiply these three numbers together and multiply the result by 0.523. This constant converts the raw dimensions into an accurate volume in cubic centimeters. This method is widely accepted for its reliability in clinical settings.
What Your Ovarian Volume Means
Your result shows the size of your ovary compared to healthy ranges for your age and menstrual stage. This number helps doctors understand your egg supply and detect potential issues like cysts.
Premenopausal Assessment: A volume between 3 and 10 cm³ indicates healthy reproductive potential. If your volume is over 10 cm³, it may suggest Polycystic Ovary Syndrome (PCOS), while a volume under 3 cm³ could indicate diminished ovarian reserve.
Perimenopausal Transition: For women in transition, a normal range is typically 2 to 8 cm³. A result below 2 cm³ suggests you are in the late stages of perimenopause, whereas a high result should be investigated for other causes.
Postmenopausal Health: Ovaries usually shrink after menopause, so a volume of 1 to 4 cm³ is expected. A result greater than 5 cm³ in postmenopausal women is considered abnormal and may require further testing to rule out masses or pathology.
Pro Tip
Always compare results between the left and right ovaries. It is normal for one to be slightly larger than the other, but significant differences warrant attention.
Disclaimer: This calculator is a screening tool for informational purposes only and is not a medical diagnosis. Always consult a qualified healthcare provider for interpretation of ultrasound results and medical advice.