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Pregnancy due date

Due date

LMP or conception date → estimated due date and week. Informational only.

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LMP or conception

Two common starting points.

EDD

Estimated due date.

Week count

Approx. gestational age.

Use the calculator

Due date

2026-10-22

Est. conception

2026-01-29

Gestational age

29w 6d

Days remaining

71

How it works

How due date is estimated

From LMP: EDD ≈ LMP + 280 days. From conception: EDD ≈ conception + 266 days. Ultrasound dating may differ.

Before you start

  • Always confirm with your clinician.
  • Cycle length variations change accuracy.

Three steps

  1. 1

    Pick method

    LMP or conception.

  2. 2

    Enter date

    First day of LMP or conception.

  3. 3

    See EDD

    Due date and week.