How long is the whole female menarche cycle?

The average menstrual cycle lasts about 28 days, but it can range from 21 to 35 days in adults. Menarche, which is the first menstrual period, typically occurs between ages 9 and 16. The entire female reproductive cycle, including the menstrual phase, follicular phase, ovulation, and luteal phase, is part of this cycle length. Each phase contributes to the overall timing and can vary from person to person.