Health & Fitness CalculatorsPrivate by design
Pregnancy Due Date Calculator
Enter the first day of your last menstrual period to estimate your due date and current gestational age.
How to use this tool
- 1Enter the first day of your last menstrual period.
- 2See your estimated due date.
- 3See your current week and day of pregnancy.
Frequently asked questions
How accurate is this estimate?+
It uses Naegele's rule (LMP + 280 days), a standard estimate assuming a typical 28-day cycle — an ultrasound-based estimate from your care provider is generally more accurate, especially for irregular cycles.
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