Try our free online Pregnancy Due Date Calculator!

Use the Due Date Calculator to determine the likely due date of your baby

How to use the Due Date Calculator

Enter the date of your last menstrual period and the number of days in your menstrual cycle into the pregnancy calculator, and click on the Calculate button. On average, there are 28 days in a menstrual cycle, but it can last from as little as 22 to as many as 44 days.

Keep in mind that only 6% of babies are actually born on their due date. The Due Date Calculator shows the likely conception date, the end of the first & second trimester dates, and, of course, the due date.

Due Date Calculator

When was the first day of your last menstrual period?

Number of days in your menstrual cycle
Likely conception date:
End of first trimester (12 weeks):
End of second trimester (27 weeks):
Your due date (40 weeks):
Copyright © 2006 C Point Pty Ltd. All rights reserved.

Got Pregnancy Questions?

Thanks for trying out our Pregnancy Due Date Calculator! If you have pregnancy related questions, don't forget to swing by and check out our online pregnancy test, Chinese gender predictor and the very active pregnancy help blog!