FitMom Club Health Calculators

Menstrual Cycle Calculator

Every woman experiences a unique menstrual cycle, and understanding it is key to maintaining reproductive health and overall well-being. Our Menstrual Cycle Calculator is designed to make this easier by helping you track your periods, predict ovulation days, and plan around important dates. Whether your goal is to manage PMS symptoms, improve cycle regularity, or better understand your fertility patterns, this tool provides a clear and reliable calendar view of your menstrual cycle.

Menstrual Cycle Calculator

Track your cycle, ovulation & fertile window

First day your last period started
28 days
2128 avg3545
Most cycles are 21–35 days. Average is 28 days.
5 days
135 avg710
Typical period lasts 3–7 days. Average is 5 days.