Home / Calculators / IVF success and prediction / Donor egg success
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.
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.
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.
Why donor outcomes track the donor age rather than yours.
Population estimateAn average for people with your inputs, not a prediction for you. Individual outcomes vary widely around it.
Donor egg outcomes track the age of the donor rather than the recipient, because egg quality is the dominant factor in embryo viability. Recipient age affects uterine receptivity, but far more gradually — which is why donor programmes change the picture sharply for people in their forties.
Source — Donor programme outcomes vary substantially between units and are not well captured by any single published figure. Ask any clinic for its own live birth rate per transfer for its donor programme, broken down by donor age.
Usually 21–32
Your age
That falls in the 45%+ band.
Your result of 48 % per transfer sits in the highlighted band. Bands are reference points used alongside clinical findings — not a diagnosis.
At the upper end, as expected with a younger donor and no significant recipient factors.
Donor programme outcomes vary substantially between units and are not well captured by any single published figure. Ask any clinic for its own live birth rate per transfer for its donor programme, broken down by donor age.
These tools apply across the process rather than at one point in it.
Because the dominant factor in embryo quality is the age of the egg. Uterine receptivity does decline, but far more gradually than egg quality does.
Yes. Under the ART Act 2021 donors are anonymous, donation is regulated through registered ART banks, and a donor may donate only once. If your home country grants donor-conceived people a right to identifying information at 18, that difference is worth thinking through.
Live birth rate per transfer for its own donor programme, the typical donor age range, and how many cycles that figure is based on. A clinic quoting only a general donor success rate is not telling you much.
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.
This explains how donor outcomes behave rather than predicting yours. Ask your clinic for its own donor programme figures — they are the only numbers that describe what you would actually be offered. 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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