CRL Calculator: Ultrasound Dating Tool

Calculate gestational age and estimated due date from crown-rump length (CRL) measurements obtained during first trimester ultrasounds.

CRL Gestational Age Calculator

Medical Disclaimer

This tool is for educational and screening purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

Crown-Rump Length (mm)

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About Crown-Rump Length (CRL) Calculator

The Crown-Rump Length (CRL) Calculator is an essential tool designed to accurately determine gestational age (GA) and estimate the due date (EDD) during the first trimester of pregnancy. This calculator serves healthcare professionals, including obstetricians and sonographers, as well as expectant parents seeking clarity on their pregnancy timeline. By inputting the precise CRL measurement obtained from an ultrasound scan, the tool applies established medical formulas to convert this embryonic or fetal length into a reliable gestational age. It provides critical, early pregnancy dating information, which is fundamental for subsequent prenatal care planning, monitoring fetal development, and ensuring optimal pregnancy management.

CRL Gestational Age Calculator

Medical Disclaimer

Crown-Rump Length (mm)