Crown Rump Length and Nuchal Translucency

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Enter the CRL and press calculate to obtain the estimated gestational age and expected nuchal translucency thickness. The calculator will also give the percentile for a measured NT if entered.

Enter crown rump length (CRL)   mm

Enter Nuchal translucency ( NT) mm


All calculations must be confirmed before use. The suggested results are not a substitute for clinical judgment. Neither nor any other party involved in the preparation or publication of this site shall be liable for any special, consequential, or exemplary

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