Predict ovulation date and fertile window for family planning.
Predict ovulation date and fertile window for family planning.
Ovulation = LMP + Cycle – 14
28-day cycle, LMP April 1 → Ovulation April 15.
Enter values above and click Calculate. All computation happens locally in your browser — no data is sent to any server.
What is Ovulation Calculator?
Predict ovulation date and fertile window for family planning.
Formula used?
Ovulation = LMP + Cycle – 14
Is it free?
Yes! All CalcNest AI tools are 100% free.
Is my data safe?
All calculations run locally. We never store or transmit your data.