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Fertility and IVF calculators

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.

How these differ from other calculators

Common questions

Second opinion

Bring your numbers to someone who can see the rest

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.

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.

Treatment context

The parts of a cycle your clinic decides — stimulation dose, trigger, and OHSS risk. These explain what has already been decided for you and what to ask about it. None of them recommends a dose or a time.

Why some tools should not be public

Medication dose, trigger timing and OHSS risk are prescribing decisions made with your full monitoring data — follicle sizes, hormone trends, and how you have responded so far. A public form sees none of that.

The consequences are not theoretical. Getting a trigger wrong loses a cycle; getting stimulation wrong can cause ovarian hyperstimulation syndrome, which is occasionally dangerous. We have listed these so that a search for them lands on an explanation rather than on a tool that should not exist.

Second opinion

Bring your numbers to someone who can see the rest

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.

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Enter your values
Result

Where this sits

Expected Borderline Below expected Worth discussing

Or ask someone
  • A free first consultation covers this properly, with your actual results rather than an estimate
  • Both partners assessed together — male factor is involved in roughly half of cases
Second opinion

Bring your numbers to someone who can see the rest

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.

Get a second opinion › Message us on WhatsApp

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What these tools measure, explained in full.

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