Menstrual Cycle Calculator
This tool helps you find the length of your menstrual cycle by tracking the start date of your periods.
1. Add Period Start Dates:Use the date picker to select the first day of a period, then click "Add Date". Your cycle length is the number of days from the start of one period to the day before the next one begins.
2. Add at Least Two Dates:To calculate one full cycle, you need to enter the start dates of at least two consecutive periods. The more dates you add, the more accurate your average cycle length will be.
3. Calculate:Once you have entered your dates, click "Calculate Cycle Length" to see the length of each individual cycle and your average.
Important Disclaimer: This calculator is an informational tool and should not be used for medical diagnosis. Cycle lengths can naturally vary. If you have concerns about the regularity of your menstrual cycle, please consult with a healthcare provider.
Track your period start dates to find your average cycle length.