Pregnancy Due Date Calculator

Find out when your baby’s due date with this pregnancy calculator

Photo credit: Dreamstime



Enter the date of the first day of your last menstrual period (LMP):



Probable date of conception:


Foetal Age Today:


Best date range for NT scan:


(12 weeks 3 days to 13 weeks 3 days)

Morphology Scan Date:


(19 weeks)

First Fetal Heart Tones by Doppler:


(11 to 12 weeks)

Best time to evaluate cervical length in patient with risk factors:


Best time for routine anatomy ultrasound:


(18 to 20 weeks)

Estimated Due Date:



Just found out you’re pregnant? Congratulations! You surely have a million questions swirling in your head, chief among them: when is my baby due? Thankfully, you don’t have to wait for your first doctor’s appointment to estimate your baby’s arrival. Simply enter the first day of your last period, and we’ll show you the baby’s estimated due date, when you likely conceived, the best date range for the NT scan, the best time for an ultrasound and the best time to evaluate cervical length. Also be sure to check out all of our fun pregnancy content!



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