Informational only — not medical advice. Always confirm your due date and any concerns with your doctor or midwife.
Knowing your estimated due date anchors everything — appointments, scans, leave, and the countdown itself. The new Pregnancy Due Date Calculator gives you that anchor in seconds.
What it does
- Due date from your last period (Naegele’s rule) or conception date.
- Current week and trimester, plus days remaining and a progress bar.
- Milestone timeline — trimester ends, the anatomy scan window, and full term.
- Cycle-length adjustment for cycles that aren’t 28 days.
Why it matters
A due date is the centre of a window, not a deadline — and the methods behind it are worth understanding. Our due date guide explains Naegele’s rule, the conception method, and why ultrasound dating is most accurate. To explore the fertile window that precedes it, try the Ovulation Calculator.
Free, and private
The Pregnancy Due Date Calculator is free and runs entirely in your browser — the dates you enter are never uploaded or stored.
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Frequently Asked Questions
Is this medical advice?
Which methods does it support?
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