CRL growth charts

Crown–Rump Length (CRL) growth chart

LMP

LMP not known

Scan date

CGA (weeks / days) — optional (overrides LMP)

Enter CGA to override LMP-derived GA.

CRL (mm)

NT (mm)

Biochemical correlation positive

If NT ≥ threshold (default 3.0 mm) or biochemical correlation is positive, chart band will turn orange.

CRL vs GA

Crown–rump length (CRL) plotted against gestational age (weeks)

Ready

Console (errors / logs):