Your Complete
Pregnancy
Calculator
Our free due date calculator gives you everything you need in one place — your baby's due date, all key pregnancy milestones, trimester progress and a full 40-week development timeline.
Choose from three calculation methods — last menstrual period, conception date, or ultrasound date — for the most accurate result possible.
Find My Due Date →Everything You Get
Much more than just a due date
Accurate Due Date
Calculated using the standard Naegele's Rule — the same method used by doctors and midwives worldwide.
Key Milestone Dates
See when each trimester ends, your early term date and your full term date — all calculated automatically.
Trimester Progress
Visual progress bars showing exactly how far through each trimester you are right now.
Development Timeline
A week by week guide to your baby's development from implantation all the way to birth.
Works Worldwide
No regional restrictions — works for mothers anywhere in the world in any time zone.
Private & Free
We never store your data. Everything runs in your browser. Completely free with no sign up needed.
How It Works
Your due date in four simple steps
Choose Method
Select last period, conception date or ultrasound as your starting point.
Enter Your Date
Pick your date from the calendar. Add cycle length or scan weeks if needed.
Click Calculate
One click gives you your due date and full pregnancy breakdown instantly.
See Everything
View your due date, key milestones, trimester progress and baby's development.