Pevlika

Pregnancy Due Date Calculator

Estimate your due date and see how far along you are.

Runs in your browser — nothing is uploaded

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Informational only — not medical advice. Talk to a doctor or registered dietitian about your health.

How to use Pregnancy Due Date Calculator

  1. Choose what the calculation is based on.
  2. Enter the date (and cycle length for last period).
  3. See the due date, current week and milestones.

Questions

How is the due date calculated?

Naegele’s rule: 280 days (40 weeks) after the first day of the last menstrual period, adjusted for cycle length. Your care provider may adjust it after an ultrasound.

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