health

Ovulation Calculator

Calculate ovulation date and fertility window from last menstrual period.

Inputs

First Day of Last Period (Year)

Month (1–12)

Day

Average Cycle Length (Days)

Ovulation DayJul 15

Fertile WindowJul 10 – Jul 16

Next PeriodJul 29

Best Conception DaysJul 13 – Jul 15

Recent Calculations

No calculations yet — results will appear here automatically.