Obstetrics & Gynecology Clinical Calculators
Obstetrics and gynecology practice requires precise clinical dating, maternal-fetal risk stratification, and rigorous diagnostic staging for women’s health. The MedCalc OB/GYN Hub provides obstetricians, gynecologists, and maternal-fetal medicine specialists with 100% offline, zero-latency access to the most vital reproductive health algorithms.
From predicting Vaginal Birth After Cesarean (VBAC) success rates to evaluating preeclampsia risk and staging ovarian malignancies via the ROMA score, these tools ensure uncompromised clinical accuracy in the clinic or on the labor deck. All formulas strictly adhere to the latest guidelines from the American College of Obstetricians and Gynecologists (ACOG) and the International Federation of Gynecology and Obstetrics (FIGO).
Obstetrics: Pregnancy Dating & Fetal Assessment
👩⚕️ Naegele’s Rule EDD Calculator
Calculate Estimated Date of Delivery from last menstrual period.
👩⚕️ EDD by Ultrasound Calculator
Determine estimated date of delivery based on crown-rump length.
👩⚕️ Beta hCG Doubling Time
Calculate quantitative hCG doubling time for early pregnancy.
👩⚕️ BPP Score Calculator
Biophysical Profile fetal assessment scoring tool.
👩⚕️ Amniotic Fluid Index (AFI)
Calculate and interpret AFI ultrasound assessments.
Obstetrics: Maternal Complications & Labor
👩⚕️ Preeclampsia Risk Calculator
Assess clinical risk factors for developing preeclampsia.
👩⚕️ HELLP Mississippi Class
Mississippi classification staging for HELLP syndrome.
👩⚕️ Bishop Score Calculator
Assess cervical readiness for induction of labor.
👩⚕️ VBAC Success Risk Calculator
Predict probability of successful vaginal birth after cesarean.
👩⚕️ GBS Risk Calculator
Assess early-onset Group B Strep disease risk.
Gynecology: Benign Conditions & Menstrual Disorders
👩⚕️ PALM-COEIN Classification
Classify etiology of abnormal uterine bleeding.
👩⚕️ Menorrhagia Severity Score
Quantify severity and impact of heavy menstrual bleeding.
👩⚕️ Endometriosis Staging Tool
Calculate rASRM endometriosis clinical stage.
Reproductive Endocrinology & Infertility (REI)
👩⚕️ Rotterdam Criteria for PCOS
Diagnostic criteria checklist for polycystic ovary syndrome.
👩⚕️ Modified Ferriman-Gallwey
Grade and quantify degree of clinical hirsutism.
👩⚕️ AMH Ovarian Reserve Tool
Evaluate ovarian reserve capacity via AMH levels.
Gynecologic Oncology
👩⚕️ ROMA Score Calculator
Risk of Ovarian Malignancy Algorithm probability index.
👩⚕️ OVA1 Risk Score Tool
Evaluate biomarker risk of ovarian malignancy before surgery.
👩⚕️ FIGO Ovarian Cancer Staging
Standardized ovarian cancer staging system tool.
👩⚕️ FIGO Cervical Cancer Staging
Standardized cervical cancer clinical staging system.