Due Date Calculator by Weeks Gestation

How it works

If you are a certain number of weeks pregnant today — for example from a scan — your due date is the remaining days to 40 weeks counted from today:

If I’m … weeks pregnant, when is my due date?

Due dates for common weeks, counted from today (updated daily):

If you only know your weeks from a scan report, use the weeks and days written on the report for the date of the scan — or, for the most precise result, enter the scan date and measurement in the Accurate Due Date Calculator. Each week has its own guide, for example 6 weeks pregnant or 12 weeks pregnant.