Calculate Your Due Date
Use this tool to calculate your due date. Input the date of your last period in the 'Last period date' field and click 'Calculate' button. Once the calculation is done you will see a summary pie chart that shows your current week of pregnancy, trimesters and the estimated due date. Repeat this calculation as long as necessary.
You can also use our FREE service to keep track of your menstural history after you deliver your baby. Register here and track your periods for FREE! Or read more about our service.