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Obstetric Calculator

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Mentor Obstetric Calculator
Calculations from LMP Date
Please enter L.M.P (eg 20 01 2009)
Cycle length: days
EDD by dates: Gestation today: weeks days
(Corrected for cycle length)
Calculations from Obstetric Ultrasound Scan
Date of scan (eg 20 01 2009)
Scan Gestation weeks days
EDD by Scan: Gestation today: weeks days

Acknowledgements EMIS is grateful to Dr Huw Thomas for writing this article. The final copy has passed scrutiny by the independent Mentor GP reviewing team. ©EMIS 2009.
Document ID: 2531
Document Version: 22
Document Reference: bgp2374
Last Updated: 30 Jun 2009
Planned Review: 29 Jun 2014

The authors and editors of this article are employed to create accurate and up to date content reflecting reliable research evidence, guidance and best clinical practice. They are free from any commercial conflicts of interest. Find out more about updating.

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