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Find Your Calculator
Have you started IVF treatment?
This includes any ovarian stimulation or egg collection procedures
Available Calculators
Choose from our comprehensive suite of evidence-based prediction models, each tailored to specific stages of IVF treatment.
Pre-IVF Cycle 1
Prediction model for patients beginning their first IVF treatment cycle, prior to ovarian stimulation.
Start CalculatorPost-IVF Cycle 1
Outcome prediction for patients who have completed their first embryo transfer procedure.
Start CalculatorPre-IVF Cycle 2
Predictive analysis for patients preparing for their second round of ovarian stimulation.
Start CalculatorAbout OPIS
The OPIS Calculator utilises comprehensive patient and treatment data from all IVF cycles conducted in the United Kingdom between 1999 and 2017.
This evidence-based tool provides personalised predictions for clinical support and patient counselling in fertility treatment.
Research Foundation
Developed through analysis of over 100,000 IVF cycles, providing statistically robust outcome predictions.
Using the Calculator
Select Calculator
Choose the appropriate calculator based on your current stage in the IVF process.
Enter Data
Provide accurate information about your medical history and treatment details.
Review Results
Understand your personalised predictions and discuss them with your healthcare provider.
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