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The length of the fetus from the crown (top of the head) to the bottom of the buttocks (the area above where the legs begin) is called Crown Rump Length (CRL). It is measured from 6 – 13 weeks of pregnancy. In this online CRL calculator, you can find the crown-rump length for the number of weeks.

Calculator of Crown Rump Length

Number of weeks
Please, Enter all values correctly.
Crown Rump Length