Pregnancy Due Date Calculator
Estimate your due date and current pregnancy week using Naegele's rule.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator estimates an expected delivery date by starting from a known or estimated conception date and adding the typical length of a full-term pregnancy. Because actual delivery timing varies naturally from one pregnancy to the next, the result is a statistical estimate centered around the most likely date rather than a fixed prediction.
Expecting parents use it early on to get a general sense of timeline for planning purposes, from figuring out which trimester they're in to booking time off work or preparing a nursery. It is often used alongside ultrasound dating, which can refine the estimate as the pregnancy progresses.
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