Ovulation Calculator
Ovulation Calculator
Estimate your most fertile days to increase your chances of conception.
Days
Estimated Ovulation Date
Date
Your Most Fertile Window
Date – Date
What is Ovulation?
Ovulation is the release of a mature egg from the ovary. It typically happens once every menstrual cycle. Identifying exactly when you ovulate is key to getting pregnant, because the egg only survives for 12 to 24 hours after release.
Since sperm can survive inside the female reproductive tract for up to 5 days, your “fertile window” includes the 5 days leading up to ovulation and the day of ovulation itself.
Frequently Asked Questions
How is this calculated?
For an average woman, ovulation happens exactly 14 days before the start of the next period. Our calculator predicts your next period based on your cycle length and subtracts 14 days to find the ovulation date.