Gestational Age Calculator
Calculate today's gestation and the dates for common pregnancy milestones using either the estimated due date (EDD) or last menstrual period (LMP).
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Input
Results
- Today's gestational age
- Common pregnancy milestones
- 12 weeks 0 days
- 20 weeks 0 days
- 28 weeks 0 days
- 37 weeks 0 days
- 40 weeks 0 days
More information
BMI Calculator
Use a woman’s pre-pregnancy weight and height to calculate the Body Mass Index and recommended pregnancy weight gain.
Input
- Pre-pregnancy weight
- Height
- Expecting
Results
- BMI is
- Ideal total Gestational Weight Gain is:
- Ideal average weight gain per week after first trimester:
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Your BMI
Visual Risk Display
Enter data in one of the fields below to generate an image of numerical risk.
Input
Frequency
Results Your estimated risk is
Illustrations
These illustrations of selected obstetric topics are provided to aid your clinical consultations. These images are of a general nature only and should be accompanied by individualised counselling.
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Fetal presentation -
Stages of labour -
Placental location -
Caesarean incisions -
Induction of labour -
Amniocentesis -
Chorionic villus sampling -
DC vs MC twins -
Short cervix -
Cell-free DNA -
RPOC
Information pamphlets for Mercy mums
- COVID-19 Mercy At Home Patient Resource
- Parenting Website Resources
- Healthy Eating In Pregnancy
- Managing Nausea And Vomiting
- What To Bring To Hospital
- Safe Sleeping Brochure
- Movements Matter Mhw Contact Details
- Daily Actions For Your Safer Pregnancy
- Panda
- Mum Space
- Birth Ideas
- Pain Relief For Childbirth Ranzcog
- Length Of Stay On The Postnatal Ward Pre Covid 19
- The Importance Of Immunisation
- Infant Hepatitis B Immunisation
- Vitamin K
- Consent To Vit K Hep B Vaccine
- Newborn Screening Brochure Vcgs
- Babys Hearing Screen
- Preventing Cmv Infection
Show more
Useful links for patients
- Mercy Perinatal patient portal Our Mercy Perinatal website pages for patients and families
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Raising children network - Pregnancy and birth
The Australian Department of Social Services online resource
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Victorian Better Health Channel - Healthy pregnancy information
The Victorian State Government website for pregnancy information
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Royal Australian and New Zealand College of Obstetricians and Gynaecologists - Patient information
Patient information from RANZCOG
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Royal College of Obstetricians and Gynaecologists - Patient information leaflets
Downloadable patient information from the RCOG in the United Kingdom
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Prenatal testing decision aid
Interactive online tool to help women navigate prenatal screening options
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Diabetes and gestational diabetes
Information for patients from Diabetes Australia
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National Diabetes Services Scheme resources
Multilingual booklets on “Gestational diabetes – Caring for yourself and your baby
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Miscarriage information
Multilingual booklets for patients from the Mercy Hospital for Women
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MHW COVID-19 in Pregnancy video
A short video to guide you through, if you have COVID-19 in pregnancy
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Useful medical links for clinicians
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Department of Health guidance on COVID-19 vaccination in pregnancy
COVID-19 vaccination guidance for health care professionals and women who are pregnant or breast feeding
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Coronavirus - Information for health services and professionals
VIC Dept of Health and Human Services
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Mercy Hospital for Women COVID-19 simulation videos
Information on management of COVID-19 positive women at MHW
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National COVID-19 clinical evidence taskforce
Australian evidence-based clinical COVID-19 guidelines updated weekly
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Mercy Health coronavirus information for patients and visitors
Keeping patients, visitors, and staff safe
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Society of Obstetric Medicine of Australia and New Zealand
SOMANZ management of hypertensive disorders in pregnancy 2014
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Australasian Diabetes in Pregnancy Society
ADIPS consensus guidelines for the testing and diagnosis of gestational diabetes in Australia 2014
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Royal Australia and New Zealand College of Obstetricians and Gynaecologists
RANZCOG Statements and Guidelines
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Australian College of Midwives
National Midwifery Guidelines for Consultation and Referral (3rd edition, Issue 2)
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Australasian Society for Infectious Diseases
Management of Perinatal Infections handbook 2022
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Perinatalogy.com
Online resource for perinatologists
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Liggins Institute
Antenatal Corticosteroids Guidelines
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Royal College of Obstetricians and Gynaecologists
RCOG Green Top Guidelines
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American Congress of Obstetricians and Gynecologists
ACOG committee opinions
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Society for Maternal Fetal Medicine
SMFM publications and guidelines
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International Society of Ultrasound in Obstetrics and Gynecology
ISUOG practice guidelines
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Perinatal Society of Australia and New Zealand
PSANZ clinical practice guidelines for perinatal mortality
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Australian Department of Health
National Antenatal Care Guidelines
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Institute of Medicine
IOM weight gain during pregnancy: Re-examining the guidelines 2009
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Royal Australia and New Zealand College of Obstetricians and Gynaecologists
RANZCOG Choosing Wisely Australia
- COVID-19, Mercy At Home Resource - Word Version Word (2179 KB)
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Quick medical references
- Dating criteria using LMP and ultrasound
- Infant Survival By Ga And Bw
- Prenatal screening and diagnostic tests
- Estimated Fetal Weight Centile Table (Mercy Hospital for Women)
- Estimated Fetal Weight Chart (Mercy Hospital for Women)
- Ideal gestational weight gain (singletons)
- Gestational weight gain (twins)
- Repeat Steroids For Preterm Birth
- Risk Of Stillbirth By Maternal Age
- SOMANZ Oral Antihypertensives Table
- ADIPS Diabetes Diagnostic Criteria
- Ultrasound Criteria For Miscarriage
- Aneuploidy risk by maternal age
Show more
For patients and families
General information about having a baby and useful resources for patients can also be found on our websitehere.
Good to know
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Online Perinatal Infections eLearning module An update on congenital CMV and syphilis for GPs and maternity clinicians -
Online Online Genetics in Pregnancy course Designed for midwives and doctors providing antenatal and pre-pregnancy care. -
