Pregnancy Due Date Calculator
Calculate your estimated due date and pregnancy milestones.
What is Pregnancy Due Date Calculator?
A pregnancy calculator estimates your due date and current week of pregnancy based on your last menstrual period (LMP) or conception date.
Pregnancy lasts about 40 weeks (280 days) from the first day of your last period.
How does the Pregnancy Due Date Calculator work?
The calculator adds 280 days to the LMP date, or 266 days to the conception date.
It shows the current pregnancy week, trimester, and key milestones.
How to use the Pregnancy Due Date Calculator?
- Enter your last menstrual period date or conception date.
- The calculator shows your due date, current week, and trimester.
Example
Try the calculator with your own numbers
- Enter your values in the input fields above.
- Adjust the values to match your situation.
- The result updates instantly as you change the inputs.
Benefits of using the Pregnancy Due Date Calculator
- Know your due date with confidence.
- Track pregnancy week by week.
- Plan prenatal appointments and milestones.
Who should use the Pregnancy Due Date Calculator?
- People tracking their weight, fitness, and daily health numbers.
- Fitness enthusiasts planning workouts, calories, and protein intake.
- Parents monitoring their child's growth and development.
- Anyone preparing for a health check-up or fitness goal.
Tips for getting the most out of the Pregnancy Due Date Calculator
- Use your most recent measurements for the most accurate result.
- Re-check periodically as your weight, age, or activity level changes.
- Treat the result as a guideline, not a medical diagnosis — consult a professional for health decisions.
Frequently Asked Questions
How accurate is the due date?
Only about 4% of babies arrive exactly on the due date. Most are born within 2 weeks before or after.
What if I don't know my LMP?
Use the conception date if known, or ask your doctor for an ultrasound-based estimate.
Small daily decisions add up. Use this calculator to track your numbers and make healthier choices with confidence.
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