Crown Rump Length Chart: Fetal Ultrasound Measurements
Prenatal Testing
Obie Editorial Team
As you embark on your journey through pregnancy, understanding the fetal crown-rump length (CRL) is a powerful tool in monitoring your baby's development. In scientific terms, the CRL is the measurement from the top of the fetal head to the area just above where the legs begin, excluding the limbs and yolk sac. This crucial measurement is often captured through ultrasound, typically up until the 14th week of your pregnancy.
Monitoring CRL provides valuable insights into your baby's growth and development. It's important to note that while the chart we provide shows average CRL measurements by days from fertilization and the last menstrual period, every pregnancy is unique and variations are expected. Utilize these insights to better communicate with your healthcare provider and advocate for your own health.
For more information, explore our in-depth ultrasound guide for expectant mothers!
