Pregnancy Due Date Calculator
Calculate your estimated due date (EDD) based on your last menstrual period (LMP) or conception date. This calculator uses Naegele’s rule which adds 280 days (40 weeks) to the first day of your last period.
About Pregnancy Due Date Calculator
This due date calculator estimates when your baby will be born based on standard pregnancy calculations. Only about 5% of women deliver on their exact due date, but most deliver within 2 weeks before or after.
The calculation is based on Naegele’s rule which assumes a 28-day cycle with ovulation on day 14. If your cycles are longer or irregular, your due date may need adjustment.
Always consult with your healthcare provider for the most accurate dating and prenatal care.






