The Due Date Calculator estimates your expected date of delivery. It’s a simple tool that predicts the day you are likely to give birth based on the first day of your last menstrual period.

Due Date Calculator

Estimate your delivery date based on menstrual cycle information.

Estimated Due Date:

How to Use the Calculator

  1. Enter the First Day of Your Last Period: Select the date from the calendar in the ‘First Day of Last Period’ field.
  2. Calculate: Click the ‘Calculate Due Date’ button to find out your estimated due date.

Formula Used

The calculator adds 280 days (40 weeks) to the first day of your last menstrual period. This reflects the standard gestation period.

Examples

  • If your last period started on January 1, 2024: The estimated due date is around October 8, 2024.
  • If your last period started on May 15, 2024: The estimated due date is around February 19, 2025.
  • If your last period started on August 10, 2024: The estimated due date is around May 17, 2025.

Additional Information

While this tool provides a general estimate, actual delivery dates can vary. Many factors can influence the actual due date, including the mother’s health, the baby’s growth, and specific medical conditions. Always consult a healthcare provider for accurate and personalized information regarding pregnancy and due dates.