OB Wheel: Pregnancy calculator

Quartertone

About this app

Easy to use Multi-function pregnancy calculator. Created by a board-certified OBGyn.

This app is also available as a web app at https://obwheel.cc

Calculate dates of pregnancy:
- Last menstrual period (LMP)
- Estimated date of conception
- Estimated gestational age (EGA)
- EGA obtained by ultrasound
- Dating by IVF Embryo transfer
- Calculate gestation by Crown-Rump length
- Estimated due date (EDD)

Additional features:
- "Time Machine" mode can calculate "How many weeks will patient be on xxxx date?" and "When will patient be xx weeks gestation?"
- Adjust length of cycle and luteal phase
- Store multiple patients for easy retrieval
- Include extra notes in patient data
- Export/import your saved data
- Full Help pages

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***IMPORTANT NOTE***
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This app calculates exactly 280 days (40 weeks) from LMP to EDC, and accordingly for any date in between. Please note that the paper/plastic wheels used by obstetricians or ultrasound technicians are inherently inaccurate. Different pregnancy wheels may vary by as much as 3 or 4 days. Please keep this in mind when comparing the values obtained here to those given in clinics/hospitals.
(see here: https://bit.ly/pregwheel)

Ratings and reviews

That is very good software for calculating pregnancy duration

Good app but please add direct backup on Android devices

Good, and I'd like to recommend it to all Medical and nursing/ midwifery students.

What's new

- Fixed bug where selecting a month from the month grid does not match the correct year. (thisboxdate in gridcal_new)
- Fixed bug in gridcal code to ignore touchmove when gridcal is active.
- Cleaned up reference links in #aboutbili page.
- Fixed CSS bug in the Bili navigator that was causing issues for Safari/Opera browsers.