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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.

What have you got?

Tick what is actually in front of you — a report, a scan, a quote. We will show which calculators it can answer, so you are not guessing which of the 44 applies to you.

Nothing ticked yet — everything below is listed by the stage of treatment it belongs to, if you would rather browse.

What each report unlocks, with your age
Embryology report15 of 44
Semen analysis10 of 44
Day-3 bloods8 of 44
Your clinic quote8 of 44
Baseline scan7 of 44
Pregnancy bloods7 of 44
Your cycle6 of 44
Stimulation record6 of 44

Counts are calculators that can answer outright from that report plus your age — not a ranking of what matters clinically.

How these differ from other calculators

Instant
No form before your answerEvery result shows immediately. Hiding an answer behind a sign-up is a bad trade for someone anxious and looking for information.
Sourced
Every reference range is citedWHO 2021 for semen, ASRM for fertile windows, Barnhart and NICE for hCG. Named on the page, so you can check them.
Honest
Ranges where ranges are honestPredictive tools output a range, not a single figure. Anything claiming three-decimal precision about a live birth is not being straight with you.
Bounded
Each one says what it cannot tell youThe hCG calculator gives no verdict, because 21% of ectopic pregnancies rise like a healthy pregnancy. Knowing the limit matters more than the number.
Safe
No dosing toolsMedication dose and trigger timing are prescribing decisions. Getting them wrong causes real harm, so they are not here.

Common questions

Are these free?

Yes. Every calculator here is free, with no sign-up and nothing held back — results show immediately, along with the reference ranges, the sources, and what each number cannot tell you. Hiding an answer behind a form is a bad trade for someone anxious and looking for information, and there are a dozen free calculators one click away, so it would not work anyway.

How accurate are they?

It depends on the calculator, and each page says which kind it is. Most are exact arithmetic on the numbers you enter. Some compare your values against published reference ranges, with the source named. A few are predictive models, and those give ranges rather than single figures because that is what the data supports.

Can a calculator replace seeing a doctor?

No, and several say so at the point where it matters most. A calculator sees three or four numbers. A clinician sees your history, your scans, your partner’s results, and how you actually responded to treatment. What these are good for is going into an appointment knowing what to ask.

Why is there no dosing calculator?

Deliberately. Medication dose and trigger timing are prescribing decisions, and getting them wrong can cause ovarian hyperstimulation, which is occasionally dangerous. Those belong in a clinician’s hands with your full monitoring data.

Is anything I enter stored?

No. Calculations run in your browser and nothing is transmitted. If you choose one of the extras, we store only what is needed to deliver it.

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.

Other categories

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.

‹ Back

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

Read the thinking behind the tools

Every calculator here is built on published evidence. These explain what sits behind the numbers.

Comparing centres? See every ART-registered fertility clinic in Bangalore, scored on the same five signals.