Wondering when your baby will arrive? Our free due date calculator helps you estimate your baby's expected arrival date in just a few seconds. Simply enter the first day of your last menstrual period, and our due date calculator will do the rest. Knowing your due date can help you plan ahead, track your pregnancy week by week, and feel more prepared for the exciting months ahead.
Our due date calculator uses a simple, trusted method based on your menstrual cycle. Most pregnancies last about 40 weeks, counting from the first day of your last period. By entering this date, the calculator quickly estimates when your baby is likely to be born. It's fast, free, and easy to use — no sign-up required.
There are a few common ways to estimate a due date:
Our due date calculator makes it simple to get an estimate using the method that fits your situation.
While no due date calculator can predict the exact day your baby will arrive, it gives you a reliable estimate to help you plan. Only about 5% of babies are born on their exact due date — most arrive within a couple of weeks before or after. Think of your due date as a helpful guide, not a guarantee.
Yes! Our due date calculator is completely free, with no sign-up or downloads needed.
Yes, you can also calculate your due date using your conception date or IVF transfer date if you have that information instead.
You can use our due date calculator as soon as you know the first day of your last period, even before your first doctor's visit.