Pregnancy Due Date Calculator

Free calculate pregnancy due date. This is an educational tool only - always consult a healthcare provider.

Pregnancy Information

Results

Enter date to calculate due date

About Due Date

  • • Naegele's Rule: LMP + 280 days
  • • Conception: Conception + 266 days
  • • Average pregnancy: 40 weeks
  • • Full term: 37-42 weeks
  • • Ultrasound may adjust dates