The length of the fetus from the crown (top of the head) to the bottom of the buttocks (the area above where legs begin) is called as Crown Rump Length (CRL). Find the crown rump length for the number of weeks using this CRL calculator.

The length of the fetus from the crown (top of the head) to the bottom of the buttocks (the area above where legs begin) is called as Crown Rump Length (CRL). Find the crown rump length for the number of weeks using this CRL calculator.

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**What is Crown Rump Length (CRL)?**

It is the length of the fetus from the top of the head (crown) to the bottom of the buttocks (the area above where legs begin). Determine fetus length in just a single click with our online crown rump length calculator.

**How CRL is measured?**

Crown Rump Length (CRL) is measured from 6 - 13 weeks of pregnancy. The measurement can be vary slightly if the fetus is temporarily stretching (straightening) its body. Crown Rump Length (CRL) is used as a primary measure of gestational age between 6-13 weeks. Head circumference, biparietal diameter, and femur length measurements become more useful measurements for assessing fetal growth after 13 weeks.

Typical CRL will be around 0.4cm for 6.1 Weeks, 1cm for 7.2 Weeks, and grow up to 8.0 cm at 14.0 weeks. The measurement is done using ultrasound scan.

Here is an online **Crown Rump Length Calculator** to calculate Crown Rump Length. Just enter the value of Number of Weeks to get the result of CRL.

**Note :**This statistics calculator is presented for your own personal use and is to be used as a guide only. Medical and other decisions should NOT be based on the results of this calculator. Although this calculator has been tested, we cannot guarantee the accuracy of its calculations or results.