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Every calculator in one place, free and with no sign-up. Results show instantly — we don't hide them behind a form. Each one explains what the number means, where the reference ranges come from, and what it cannot tell you.
A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.
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These tools provide general information and are not a diagnosis or a substitute for assessment by a qualified clinician. Reference ranges and sources are stated on each calculator. Predictive estimates describe groups of people and cannot predict an individual outcome.
A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.
Free first consultation. No obligation to start treatment, and it doesn't affect your care at your current clinic.
Count across the whole ejaculate rather than per millilitre.
Exact calculationArithmetic on the numbers you enter. If your inputs are right, this figure is right.
Total sperm count is semen volume multiplied by concentration, giving the number of sperm in the whole ejaculate. The WHO 2021 lower reference limit is 39 million — the 5th centile of men whose partners conceived naturally within a year.
Source — WHO laboratory manual for the examination and processing of human semen, 6th edition (2021). Lower reference limit 39 million per ejaculate.
From your report
Million per mL
That falls in the 60+ band.
Your result of 120.0 million sits in the highlighted band. Bands are reference points used alongside clinical findings — not a diagnosis.
Well within the reference range. Total count is unlikely to be the limiting factor here.
WHO laboratory manual for the examination and processing of human semen, 6th edition (2021). Lower reference limit 39 million per ejaculate.
Highlighted is the stage this measurement belongs to. It is a map of the process, not a schedule — timings vary by protocol and by clinic.
Because concentration is per millilitre. 60 million/mL in a 0.8 mL sample is 48 million total; the same concentration in 4 mL is 240 million. Total count is what reaches the destination.
Incomplete collection is the most common and most easily fixed cause. Beyond that, short abstinence, retrograde ejaculation, and obstruction are considered. Tell your lab if any of the sample was lost.
No. Total count is one parameter among several, and total motile sperm count predicts treatment options better. Plenty of couples with a below-reference count conceive naturally or with IUI. It is a flag to discuss, not a route decision.
A calculator sees three or four figures. A specialist sees your history, your scans, your partner's results, and how you actually responded to treatment. If you're between cycles, changing clinics, or something in your results doesn't add up, a second opinion is the fastest way to find out whether anything would be done differently.
Free first consultation. No obligation to start treatment, and it doesn't affect your care at your current clinic.
WHO reference limits are decision limits interpreted alongside clinical findings, not pass or fail thresholds. Nothing here is a diagnosis or a substitute for assessment by a clinician.
A calculator gives you a number. These explain what it means, and what it does not.
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