Due Date & Gestational Age Calculator
An advanced obstetric tool utilized by obstetricians and expectant parents to quickly estimate delivery date (EDD), completed weeks, and key prenatal testing milestones.
Select Calculation Method
Identify the primary marker to initiate dating calculations.
ESTIMATED DUE DATE (EDD)
—
GESTATIONAL AGE ON —
—
Fetal Development: Week —
Explore Week — →
Calculate to see the pregnancy week.
Trimester Progression: —
— Days remaining to 40 Weeks (approx.)
Wk 1
Wk 40
Calculation MethodLMP Method
Dating reference / LMP estimate—
Estimated Date of Conception (DOC)—
Estimated Conception—
Important Dates, Windows & Testing Reminders
Based on your estimated timeline, keep track of these essential screening dates, immunization windows, and developmental milestones.
| Pregnancy Milestone | Estimated Date / Window | Clinical Context / Advice |
|---|---|---|
| Calculate a date to populate the timeline. | ||
This calculator provides estimates for educational and planning purposes only and is not a substitute for advice, diagnosis, or dating by a qualified healthcare professional.