Why is ultrasound dating more accurate?

Early ultrasounds (first trimester) measure the Crown-Rump Length (CRL) of the fetus, which grows at a very predictable rate, making it more accurate than dating by Last Menstrual Period (LMP).

What does Gestational Age mean?

Gestational age is the age of the pregnancy, measured in weeks and days. A full-term pregnancy is typically 40 weeks.

Due Date by Ultrasound Calculator

Ultrasound Date

Weeks Gestation

Days Gestation

Estimated Due Date

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