Pregnancy Due Date Calculator
Pregnancy Due Date Calculator is free to use. Enter your figures below and the result updates as you type. Use it for planning; it is an estimate, not advice.
About the Pregnancy Due Date Calculator
Due date = first day of last period + 280 days (Naegele’s rule).
Scan dating in the first trimester is more accurate than the last period date. Follow your doctor.
How to use the Pregnancy Due Date Calculator
- Enter each figure in the boxes above, using the same currency and time units.
- The result updates as you type. Press Calculate to refresh it at any time.
- Change one figure at a time to see how much it moves the result.
Frequently asked questions
What is the Pregnancy Due Date Calculator used for?
Scan dating in the first trimester is more accurate than the last period date. Follow your doctor.
How accurate is the Pregnancy Due Date Calculator?
It applies standard formulas to the figures you enter. Real results depend on actual rates, fees, taxes and timing, so treat the output as an estimate and confirm with your bank or adviser.
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