Crown-Rump Length Calculator

Crown-Rump Length Calculator - Fetal Development Measurement

Crown-Rump Length Calculator

Calculate gestational age and fetal development based on Crown-Rump Length (CRL) measurements from ultrasound. CRL is the most accurate method for dating early pregnancy (6-14 weeks).

CRL Measurement (mm)

Enter the crown-rump length in millimeters

Measurement Date

Last Menstrual Period (LMP)

Optional: for comparison with LMP dating

Average Cycle Length (days)

Typically 21-35 days

Ethnicity (optional)

May affect growth percentiles

Maternal Age (years)

Optional: for risk assessment

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Crown-Rump Length Calculator

Crown-Rump Length Calculator

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CRL Analysis Results

Estimated Gestational Age

Key Dates

Growth Assessment

Growth Percentiles

Important Notes:

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