Due Date From Ultrasound Calculator
Calculate your estimated due date from an ultrasound scan by entering the date of the scan and the gestational age the sonographer measured, usually reported in weeks and days. Early ultrasounds, especially those in the first trimester based on the crown rump length, are considered the most accurate way to date a pregnancy, often more reliable than counting from your last period if your cycles are irregular. This tool takes the scan date and the measured gestational age, works forward to the full 40 week point to give your estimated due date, and also shows how many weeks and days along you are today. Enter the scan date and the reported gestational age to see your due date and current progress. Everything is calculated in your browser, and this is general information, not medical advice. Your provider uses the full clinical picture to confirm and sometimes adjust your official due date.
How to use Due Date From Ultrasound Calculator
- Enter the date the ultrasound was performed.
- Enter the measured gestational age in weeks and days.
- Read the estimated due date and your current progress.
Frequently asked questions
How does an ultrasound set the due date?
From the scan date and the measured gestational age in weeks and days, the tool counts forward to 40 weeks to give an estimated due date.
Why can this differ from a last-period due date?
Early scan measurements often date a pregnancy more precisely than cycle timing, so an ultrasound estimate can shift the due date by several days.
Does it show how far along I am now?
Yes; alongside the due date it reports your current gestational progress based on the scan dating and today date.
What is Due Date From Ultrasound Calculator?
Calculate your estimated due date from an ultrasound scan by entering the date of the scan and the gestational age the sonographer measured, usually reported in weeks and days. Early ultrasounds, especially those in the first trimester based on the crown rump length, are considered the most accurate way to date a pregnancy, often more reliable than counting from your last period if your cycles are irregular.
Is Due Date From Ultrasound Calculator free to use?
Yes. Due Date From Ultrasound Calculator is completely free, with no sign-up and no usage limits.
Does Due Date From Ultrasound Calculator work in a web browser?
Yes. Due Date From Ultrasound Calculator runs in any modern web browser. There is nothing to download or install.
Is my data private with Due Date From Ultrasound Calculator?
Yes. Due Date From Ultrasound Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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