Free Carely Tool

Pregnancy Due Date Calculator (EDD)

Estimate your due date (EDD) from your last menstrual period and cycle length — plus how many weeks pregnant you are now and your trimester.

Estimate your due date

Estimated due date

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This is an estimate, not medical advice. Only about 1 in 20 babies arrive on the exact due date — confirm with your doctor.

Frequently asked questions

How is my due date calculated?

Your LMP plus 280 days (40 weeks), adjusted for cycle length other than the standard 28 days.

Will my baby arrive on the due date?

Probably not — only about 1 in 20 babies arrive on their exact due date. Most births happen in the weeks around it.