ðŸĪ° Pregnancy Due Date Calculator

Estimate your due date based on your last menstrual period.

Based on Naegele's rule (LMP + 280 days), a standard estimate — only about 5% of babies are born exactly on the due date. Consult your doctor for a medically confirmed estimate.

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📘 How to Use This Tool

Estimate your pregnancy due date based on the first day of your last menstrual period.

  1. Enter the first day of your last menstrual period.
  2. Enter your average cycle length in days.
  3. Click Calculate to see your estimated due date and current week of pregnancy.

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