Name: Pregnancy Due Date Calculator
Rating: 4.8 (1250 reviews)

Calculate Based On

First Day of Last Period

Note

This calculator uses Naegele's rule (280 days from LMP). Only about 5% of babies are born on their exact due date. Most births occur within 2 weeks before or after. Please consult your healthcare provider for accurate dating.

Pregnancy Due Date Calculator

Key Dates

Note