Skip to main content

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 ( )
Page printed: . Unofficial document if printed. Please refer to SOURCE for latest information.

Copyright © Perinatal Services BC. All Rights Reserved.

    Copyright © 2024 Provincial Health Services Authority.