Due Date Calculator
Pregnancy Due Date Calculator – Estimate Your Baby’s Expected Delivery Date
Use our free Due Date Calculator to estimate your baby’s expected delivery date (EDD) based on the first day of your last menstrual period (LMP) and average cycle length. This simple pregnancy calculator provides a quick estimate to help you plan appointments, maternity leave, and important milestones.
What Is a Due Date Calculator?
A pregnancy due date calculator estimates the expected date of delivery (EDD) by adding approximately 280 days (40 weeks) to the first day of your last menstrual period. It is commonly used during early pregnancy to provide a general timeline.
While this tool gives an estimate, actual delivery dates may vary. Always consult a qualified healthcare professional for medical guidance.
Why Use This Pregnancy Due Date Tool?
- ✔ Instant expected delivery date estimate
- ✔ Based on standard 40-week pregnancy calculation
- ✔ Adjustable for different menstrual cycle lengths
- ✔ Helpful for early pregnancy planning
- ✔ Free and easy to use online
How to Use the Due Date Calculator
- Select the first day of your last menstrual period (LMP).
- Enter your average menstrual cycle length (typically 28 days).
- Click the Calculate button.
- View your estimated pregnancy due date.
Note: This estimate assumes a regular cycle. Individual results may vary.
Key Features
- Accurate LMP-based pregnancy estimation
- Custom cycle length adjustment
- Mobile-friendly design
- Instant calculation results
- No registration required
How Pregnancy Due Dates Are Estimated
| Method | Description |
|---|---|
| LMP Method | Adds 280 days (40 weeks) to the first day of last period |
| Ultrasound Dating | Uses fetal measurements for gestational age estimate |
Frequently Asked Questions
How accurate is a due date calculator?
It provides an estimate based on a standard 40-week pregnancy. Actual delivery dates may vary.
What if my cycle is not 28 days?
You can adjust the cycle length field to better match your average menstrual cycle.
Can this calculator confirm pregnancy?
No. This tool only estimates a due date and does not confirm pregnancy.
Is the expected delivery date exact?
No. Most babies are born within a range around the estimated due date.
Should I consult a doctor?
Yes. For medical advice and pregnancy care, consult a qualified healthcare professional.
Related Tools
Estimate Your Baby’s Due Date Today
Enter your last menstrual period date and cycle length to get your estimated delivery date instantly.
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