Due Date Calculator

There are two ways of calculating the pregnancy due date:
By using the date for the first day of your last period or by conception date.
Please make the selection for the method below. Then enter the date and hit Calculate.
Method 1: Enter the first day of your last period and click this radio button:
- or -
Method 2: Enter the date of conception and click this radio button:
Month: Day: Year:

What does this Pregnancy Due Date Calculator do?

It gives you the estimated due date for the birth of your baby. All you have to do is to enter the date of the first day of your last period or the date of conception if you feel confident about knowing it. Please note that the date is an "estimate" and that the actual baby due date will vary from person to person. More Tools: Period Calculator