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OB Wheel: Pregnancy calculator

OB Wheel: Pregnancy calculator
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OB Wheel: Pregnancy calculator

Pregnancy due date calculator. Created by a board-certified ObGyn doctor.

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OB Wheel: Pregnancy calculator is developed and provided by Quartertone.

Quartertone
How to Download&Play OB Wheel: Pregnancy calculator on PC?
Last Updated: 2026-03-02
com.quartertone.medcalc.obwheel
  • Overview

  • FAQ

Run OB Wheel: Pregnancy calculator on PC with LDPlayer

OB Wheel: Pregnancy calculator is a Medical application developed by Quartertone, but with the best Android emulator-LDPlayer, you can download and play OB Wheel: Pregnancy calculator on your computer.

Running OB Wheel: Pregnancy calculator on your computer allows you to browse clearly on a large screen, and controlling the application with a mouse and keyboard is much faster than using touchscreen, all while never having to worry about device battery issues.

With multi-instance and synchronization features, you can even run multiple applications and accounts on your PC.

And file sharing makes sharing images, videos, and files incredibly easy.

Download OB Wheel: Pregnancy calculator and run it on your PC. Enjoy the large screen and high-definition quality on your PC!

A NEW VERSION IS AVAILABLE!

Join the Beta testing group

https://play.google.com/apps/testing/com.quartertone.obwheeltwa



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Multi-function pregnancy calculator. Created by a board-certified ObGyn.



Calculate dates of pregnancy:

-Last menstrual period (LMP)

-Estimated date of conception

-Weeks gestational age (WGA)

-WGA obtained by ultrasound

-Dating by IVF Embryo transfer

-Calculate gestation by Crown-Rump length

-Estimated due date (EDC)

-"Time Machine" mode can calculate "How many weeks will patient be on xxxx date?" and "When will patient be xx weeks gestation?"



Features still present, but no longer supported:

-Store multiple patients for easy retrieval

-Adjust length of cycle and luteal phase

-Full Help pages

-Include extra notes in patient data





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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)



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OBWheel is now completely FREE!



If you would like to continue supporting me directly, you can do so at https://buymeabeer.com/quartertone



You can also donate directly to organizations that need your help right now:



lebanoncrisis.carrd.co - Lebanon Crisis support organizations

supportlrc.app/donate - Lebanese Red Cross

wck.org - World Central Kitchen

ri.org - Relief International

msf.org - Doctors Without Borders

reproductiverights.org - Center for Reproductive Rights

thetrevorproject.org - Trevor Project

blacklivesmatter.com - Black Lives Matter

plannedparenthood.org - Planned Parenthood

eji.org - Equal Justice Initiative

hrc.org - Human Rights Campaign





The people of the world thank you for your support.

We are one.
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Screenshots and Videos of OB Wheel: Pregnancy calculator PC

With LDPlayer, you can download and run OB Wheel: Pregnancy calculator on PC, simultaneously managing multiple apps and multiple accounts. Become a master of time management, balancing work and entertainment effortlessly.

How to Download and Run OB Wheel: Pregnancy calculator on PC

  • 1

    Download and install LDPlayer on your computer

  • 2

    Locate the Play Store in LDPlayer's system apps, launch it, and sign in to your Google account

  • 3

    Enter "OB Wheel: Pregnancy calculator" into the search bar and search for it

  • 4

    Choose and install OB Wheel: Pregnancy calculator from the search results

  • 5

    Once the download and installation are complete, return to the LDPlayer home screen

  • 6

    Click on the game icon on the LDPlayer home screen to start enjoying the exciting game