Health and Fitness Tools
Pregnancy Due Date Calculator
Calculate your baby’s estimated due date, pregnancy week, trimester, and conception date.
About this tool
The Pregnancy Due Date Calculator helps expectant parents estimate a baby’s due date using the medically accepted 40-week (280-day) method based on the first day of the last menstrual period (LMP). It also shows the current pregnancy week, trimester, and an estimated conception date.
If you want to plan milestones beyond the estimated due date (appointments, checkups, or personal reminders), use the Future Date Calculator to add weeks or months to any chosen date. To measure exact time gaps between appointments or events, the Time Duration Calculator is useful for precise planning.
How to Use This Tool
- Select the first day of your last menstrual period (LMP).
- Click the Calculate Due Date button.
- View your estimated due date, pregnancy week, trimester, and conception date.
Frequently Asked Questions
How is the pregnancy due date calculated?
The calculator adds 280 days (40 weeks) to the first day of your last menstrual period (LMP), which is the standard medical method.
Is this pregnancy due date accurate?
The result is an estimate. Actual delivery dates may vary depending on individual health and pregnancy factors.
Can I calculate my current pregnancy week?
Yes, the tool shows your current pregnancy week and trimester based on today’s date.
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