Best Obstetrics Calculator Apps

211+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated June 2026

If you already know Obstetrics Calculator, this is the deeper bench. 211+ obstetrics calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Obstetrics Calculator

Obstetrics Calculator#1

Obstetrics Calculator by Alexander Snegirev

Editor's Choice
🏥 Medical
5.0(1 ratings)
FreeAdsIn-App Purchases
Obstetrics Calculator screenshot 1
Obstetrics Calculator screenshot 2
Obstetrics Calculator screenshot 3
Obstetrics Calculator screenshot 4
Obstetrics Calculator screenshot 5
Obstetrics Calculator screenshot 6

This medical app provides a comprehensive suite of tools for calculating gestational age, estimated due dates, and various risk assessments related to pregnancy and women's health. It includes calculators for maternity leave, cervical assessments, and cancer risk estimations, designed for healthcare professionals.

More Obstetrics Calculator apps to explore

4
MDCalc Medical Calculator
MDCalc Medical Calculator
MDCalc Medical Calculator
Clinical Decision Support
Free

This app provides over 900 evidence-based medical calculators, risk scores, and clinical tools for healthcare professionals. It offers offline functionality, expert insights, and CME tracking to support patient care at the bedside. Tools are developed and validated by board-certified physicians.

900+ evidence-based calculatorsOffline functionalityExpert insights and commentary
🏥 Medical
(51K)
free
5
OB Calc (cloud)
OB Calc (cloud)
OB Calc (cloud)
By a doctor, for doctors
Free

This medical app helps obstetricians efficiently calculate key patient test date windows. It offers multiple calculation methods and allows for saving patient data and generating PDF reports. A free trial is available, followed by a subscription for full access.

LMP, EDC, Ultrasound, CRL, and IVF calculationsCustomizable test date rangesCross-device data syncing
🏥 Medical
(5)
free with in-app purchases
6
FAST Pregnancy Calculator
FAST Pregnancy Calculator
FAST Pregnancy Calculator
For Healthcare Professionals
Free

This medical app helps healthcare professionals quickly calculate pregnancy gestation weeks using last menstrual period dates or ultrasound scan data. It provides pregnancy progress information and is designed for busy medical staff.

Calculate gestation by LMPCalculate gestation by ultrasoundPregnancy progress information
🏥 Medical
(4)
free
7
EDD - EGA calculator
EDD - EGA calculator
EDD - EGA calculator
Simple, Fast, Straightforward
Free
🏥 Medical
(0)
8
Perfect OB Wheel
Perfect OB Wheel
Perfect OB Wheel
Obstetrics calculator
$1.99

This app is a comprehensive obstetrics calculator that provides detailed pregnancy information. It offers flexible input options and displays thorough results including estimated due dates, gestational ages, and fetal growth estimates.

Flexible input (LMP, conception, EDC, ultrasound)Fast data entry optionsDetailed pregnancy results
🏥 Medical
(3.4K)
free with in-app purchases
9
OB Wheels
OB Wheels
OB Wheels
by Joshua D. steinberg
Free

This app calculates due dates, gestational age, and reconciles sonogram and LMP dates using a digital OB wheel and calendar. It offers a familiar interactive wheel for precise date calculations, accounting for leap years.

Calendar calculator for EDD/EDCGestational age calculationInteractive digital OB wheel
🏥 Medical
(15)
free
10
Gestational Age (baby's age)
Gestational Age (baby's age)
Gestational Age (baby's age)
Calculator & Prenatal Care
Free

This app helps healthcare professionals quickly calculate gestational age, estimate due dates, and track prenatal care. It offers tools for monitoring pregnancy progress, including clinical charts, fetal weight estimation, and patient history organization.

Gestational age calculation (LMP & Ultrasound)Estimated Due Date (EDD) calculationPrenatal care tracking
🏥 Medical
(181)
free with in-app purchases
11
ACOG
ACOG
ACOG
by Fountainhead Mobile Solutions LLC
Free

This app provides obstetricians and gynecologists with essential tools and resources for women's healthcare. Access clinical guidelines, practice advisories, and helpful calculators to support your medical practice.

EDD CalculatorIndicated Delivery tool (members only)Clinical Consensus documents
🏥 Medical
(6.3K)
free
12
Calculate by QxMD
Calculate by QxMD
Calculate by QxMD
Medical Calculator
Free

This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.

Over 200 medical calculatorsClinical decision support toolsCardiology, internal medicine, and more
🏥 Medical
(5.1K)
free with in-app purchases
13
Gestational Age (by Medfolio)
Gestational Age (by Medfolio)
Gestational Age (by Medfolio)
Fast and Intuitive Calculation
Free

This medical app calculates gestational age based on information from leading health organizations. It provides pregnancy development insights but is not a substitute for professional medical advice or diagnosis.

Gestational age calculationBased on ACOG guidelinesInformation from U.S. health departments
🏥 Medical
(2)
free
14
Pregnancy Gestogram
Pregnancy Gestogram
Pregnancy Gestogram
by Isis Producciones y Cia. Ltda.
Free

Track your pregnancy progress and your baby's development with this app. It provides detailed information on fetal measurements, maternal changes, and weekly pregnancy insights, including 3D ultrasound images and videos.

Fetal biometry tracking (BPD, LF, weight, size)Maternal health metrics (weeks pregnant, due date, weight gain)Uterine height and contraction frequency
💪 Health & Fitness
(6)
free
15
OB Wheel
OB Wheel
OB Wheel
Due Date Calculator
Free

This app assists expectant mothers and healthcare professionals in tracking pregnancy with accurate due date calculations and weekly fetal development updates. It offers customizable features, health tips, and tools for clinicians to support patient care throughout the journey to delivery.

Accurate due date calculationWeekly fetal development trackerCustomizable reminders and tracking
🏥 Medical
(7)
free
16
Obstetrical Calculator
Obstetrical Calculator
Obstetrical Calculator
by Manuel Posadas
Free
🏥 Medical
(0)
17
Calculator₊
Calculator₊
Calculator₊
Basic, Scientific, Plus Calc
Free

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

Basic and scientific calculationsUnit and currency converterAI-powered math solver with photo recognition
🔧 Utilities
(1.7M)
free with in-app purchases
18
OB Wheel for Pregnancy
OB Wheel for Pregnancy
OB Wheel for Pregnancy
Due date trimester calculator
Free

This app helps expecting mothers and medical professionals calculate due dates, track pregnancy trimesters, and monitor baby's growth and nutritional needs. It offers a countdown to the due date and provides essential information for informed prenatal care.

Calculate due dateTrack trimestersDetermine measurements
🏥 Medical
(27)
free
19
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.

Customizable themes and colorsDual-line displayCalculation history
🔧 Utilities
(3K)
ad-supported
20
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
Free

A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.

Customizable themesScientific calculatorUnit converter
🔧 Utilities
(3.5K)
free