Obstetric Calculator (also known as Obstetrical Wheel) will help to determine gestational age in weeks and days as well as estimated due date using last menstrual period ultrasound report ovulation/IVF and other methods.

In addition there are 10+ equally useful ObGyn tools in the application.

The full list of available tools and scales:
- Estimated due date (EDD) & Gestational Age by First Day of Last Menstrual Period (LMP)
- EDD & GA by Ultrasound Report
- EDD & GA by Conception Date
- EDD & GA by Fetal Movements
- EDD & GA from Given Date
- GA & LMP from Estimated Delivery Date
- GA by Crown-Rump Length (CRL)
- GA by Fetal Biometry
- Estimated Fetal Weight by Mother's Biometry
- Bishop Score (Quick Cervix Assessment)
- Probability of Successful Vaginal Birth after Cesarean Section (VBAC/TOLAC)
- Breast Cancer Risk Estimation (Gail Model)
- Cervical Cancer Risk Estimation (ASCCP 2020)

Each tool is accompanied by instructions ("i" in the upper right corner).

This app was designed for educational use by health care providers in the field of Obstetrics & Gynecology.