But, there is one standard way to calculate the menstrual cycle.
The second input requires you to give the average length of time between your periods.
Plan a period-free beach trip or a big event like a wedding.
Your results Given the information you provided, your next ovulation date is estimated to be.
Learning how to calculate menstrual cycle is something that most women will find very handy as they go through life—after all, the average woman will experience about 480 periods in their lifetime.
In order to make this work, a woman must be able to track her periods accurately.