Free online Ovulation Calculator

Use the Ovulation Calculator to find out when your ovulation date is, and increase the likelihood of getting pregnant. The Ovulation Calculator shows your fertile days - keep in mind that you are most fertile on your ovulation date.

How to use the Ovulation Calculator

On average, there are 28 days in a menstrual cycle - it can last from as little as 22 to as many as 44 days. The Ovulation Calculator gives you the approximate ovulation date, but if your cycle is irregular the results may be less accurate.

Did you find the Ovulation Calculator useful?
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Script running the Ovulation Calculator

The ovulation calculator is powered by JavaScript and created with JavaScript Editor.

JavaScript is easy to use and great fun! Become JavaScript expert in record time with JavaScript Editor's hands-on step-by-step tutorials and enjoy:

• Creating your own scripts
• Using other people's scripts - there are thousands of free ones on the web, and
• Adding life and interactivity to your web pages!