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Estimated Date of Delivery (EDD) Calculator

BC ultrasound facilities may use different dating calculation charts (Lessoway or Robinson charts ) for crown-rump length dating. 

This online dating calculator tool uses the Robinson chart.  

As such, depending on the ultrasound facility, there may be a crown-rump length gestational dating variance of 1-2 days.


SOURCE: Estimated Date of Delivery (EDD) Calculator ( )
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