Ovulation Calculator
Ovulation typically occurs about 14 days before your next period starts, regardless of cycle length — this estimates that date from your own cycle history.
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How this works
Estimated ovulation day = LMP + (cycle length − 14 days), based on the standard 14-day luteal-phase assumption.
Medical disclaimer
This tool provides general health information based on published formulas and guidelines. It is not a medical diagnosis and does not replace advice from a qualified doctor. If you have a health concern, please consult a physician or book a consultation on IMCURE.
Frequently asked questions
Is this reliable for irregular cycles?
Less so — irregular cycles make ovulation harder to predict from dates alone. Ovulation predictor kits or tracking basal body temperature are more reliable in that case.
