An ovulation calculator that uses just your cycle length and calendar days can provide an estimate based on cycle averages. For more accuracy, download our free app.
Ovulation Calculator
Your Results
Last Menstrual Period
Cycle Length
Estimated Ovulation Date
Estimated Most Fertile Days
This is an estimate based on general averages only. To accurately identify your ovulation date and fertile window, track your fertility signs with Fertility Friend.
Free
Ovulation Facts
- Ovulation is the release of a mature egg from the ovarian follicle.
- You can get pregnant the few days before ovulation and on the day of ovulation.
- Ovulation occurs on average about 14 days before your period, though it can vary from 10-16 days.
- Many women do not have typical cycles, and even those who do may see irregularities from time to time.
Disclaimer: This ovulation calculator is intended for educational purposes only. It is not accurate enough to be used for preventing pregnancy or any other purpose requiring accurate ovulation determination. Please consult your healthcare provider for any health related questions and issues.