Reviewed by: Dr. Emily Smith, OB-GYN
Dr. Smith is a certified obstetrician-gynecologist with over 15 years of experience in women’s health and fertility.
Dr. Smith is a certified obstetrician-gynecologist with over 15 years of experience in women’s health and fertility.
Enter your cycle details below to calculate your estimated ovulation period.
Free Ovulation Calculator
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Ovulation Calculation Formula
Ovulation Date = Last Period Start Date + (Cycle Length - 14 days)
Formula Source: WebMD
- Cycle Length: The number of days in your menstrual cycle.
- Last Period: The start date of your last menstrual period.
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What is Ovulation?
Ovulation is the process when a mature egg is released from the ovary, making it available for fertilization. This typically occurs around the middle of your menstrual cycle.
How to Calculate Ovulation (Example)
- Step 1: Enter your cycle length and the first day of your last period.
- Step 2: Use the formula to estimate your ovulation date.
- Step 3: Click “Calculate” to see your ovulation date.
Frequently Asked Questions (FAQ)
When does ovulation occur? Ovulation typically occurs around day 14 of a 28-day cycle.
Can ovulation be predicted? Yes, with the right tools and tracking your cycle, ovulation can be predicted with high accuracy.
How accurate is this calculator? The accuracy depends on how regular your cycle is. If you have irregular cycles, results may vary.