Pregnancy Due Date Calculator
Estimate your baby's due date based on your last menstrual period.
Frequently Asked Questions
How is the due date calculated?
The calculator adds 280 days (40 weeks) to the first day of your last menstrual period, which is the standard method used by healthcare providers.
How accurate is the estimated due date?
The due date is just an estimate. Most babies are born within two weeks before or after the estimated date.
Can I use this calculator if my cycle is irregular?
If your cycles are irregular, the estimate may be less accurate. An ultrasound in early pregnancy can provide a more precise due date.
What if I know my conception date?
If you know the exact conception date, the calculator can estimate your due date by adding 266 days to that date.
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