Male Fertility Calculator

Semen analysis parameter interpretation.

Medical Disclaimer

This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.

Inputs

Age

Semen volume (mL)

Sperm concentration (M/mL)

Total motility (%)

Progressive motility (%)

Normal morphology (%)

Varicocele present (0=No, 1=Yes)

Smoker (0=No, 1=Yes)

BMI

Tab to move between fields

Results

Fertility index (0-100)

100

Total sperm count (M)180

Total motile sperm count (M)99

TMSC category (0/1/2)0

Normal parameters (out of 6)6

Classification (0-3)0

Volume normal? (1=Yes)1

Concentration normal? (1=Yes)1

Motility normal? (1=Yes)1

Morphology normal? (1=Yes)1

How to Use This Calculator

Enter semen analysis values: volume (mL), sperm concentration (M/mL), total motility (%), progressive motility (%), and normal morphology (%).
Set your age and BMI, and indicate whether you have a varicocele or smoke.
Review Fertility index (0–100) as a composite score of all semen parameters.
Check Total motile sperm count (M) and TMSC category to understand IVF/IUI applicability.
Use Normal parameters (out of 6) to identify which values fall below WHO reference limits.

What each input means

Age: Your current age.
Semen volume (mL): Ejaculate volume in milliliters. WHO lower ref: 1.4 mL.
Sperm concentration (M/mL): Sperm concentration in millions per mL. WHO lower ref: 16 M/mL.
Total motility (%): Percentage of motile sperm (any movement). WHO lower ref: 42%.
Progressive motility (%): Percentage of progressively motile sperm. WHO lower ref: 30%.
Normal morphology (%): Percentage of normally shaped sperm (strict criteria). WHO lower ref: 4%.
Varicocele present (0=No, 1=Yes): 1 if diagnosed with varicocele.
Smoker (0=No, 1=Yes): 1 if you currently smoke.
BMI: Body mass index.

What each result means

Fertility index (0-100): Composite fertility score based on all semen parameters and lifestyle factors.
Total sperm count (M): Total sperm count in millions. WHO lower ref: 39M.
Total motile sperm count (M): TMSC = volume x concentration x motility. Key fertility predictor.
TMSC category (0/1/2): 0=normal (>20M), 1=subfertile/IUI (5-20M), 2=IVF/ICSI territory (<5M).
Normal parameters (out of 6): How many semen parameters meet WHO reference limits.
Classification (0-3): 0=normozoospermia, 1=mild subfertility, 2=moderate, 3=severe.
Volume normal? (1=Yes): 1 if volume meets WHO lower reference limit.
Concentration normal? (1=Yes): 1 if concentration meets WHO lower reference limit.
Motility normal? (1=Yes): 1 if total motility meets WHO lower reference limit.
Morphology normal? (1=Yes): 1 if morphology meets WHO lower reference limit.

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Age = 32, Semen volume (mL) = 3, Sperm concentration (M/mL) = 60, Total motility (%) = 55 = 9 input(s) provided
Calculate Fertility index
Fertility index
100 = 100
Calculate Total sperm count
Total sperm count
180 = 180
Calculate Total motile sperm count
Total motile sperm count
99 = 99