Period & Menstrual Cycle Calculator | Track Ovulation & Next Period

Period & Menstrual Cycle Calculator

Track Your Cycle, Predict Ovulation & Forecast Next Periods

First Day of Last Period:

Average Menstrual Cycle Length:

Average Period Duration:

Number of Cycles to Forecast:

Understanding Your Menstrual Cycle

A typical menstrual cycle lasts between 21-35 days. The first day of your period is considered Day 1 of your cycle. Ovulation usually occurs about 14 days before your next period begins.

Fertility Window

Your fertile window includes the 5 days before ovulation and the day of ovulation itself. The highest chance of conception occurs in the 2-3 days before ovulation.

Disclaimer

Important: This calculator provides estimates based on averages. Your actual cycle may vary. Not to be used for contraceptive purposes. Consult your healthcare provider for medical advice.