Universal Due Date Calculator | Pregnancy & Project Deadlines

Due Date Calculator

Advanced Tool for Pregnancy & Project Deadlines

First Day of Last Period (LMP)
First Day of Last Period (LMP)
Conception Date
Ultrasound Date
IVF Transfer Date
28 Days
26 Days (Short Cycle)
27 Days
28 Days (Standard)
29 Days
30 Days
31 Days
32 Days (Long Cycle)
Days
Days
Weeks
Months
Quarters
Yes (Sat & Sun off)
Yes (Sat & Sun off)
No (Include all days)
Custom Working Days
None
None
USA Holidays
India Holidays
Pakistan Holidays
UK Holidays
European Holidays
Custom Holidays
Forward from Start Date
Forward from Start Date
Backward from End Date
Midpoint Calculation
Estimated Date
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Calculation History
TypeInput DateDue DateDetails
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How to Use This Advanced Due Date Calculator

Whether you are an expectant mother planning for your baby's arrival or a project manager scheduling a deadline, accuracy is key. Our dual-mode tool allows you to switch seamlessly between pregnancy and business calculations.

For Pregnancy (Naegele's Rule)

Select "Pregnancy" to calculate your EDD (Estimated Date of Delivery). We use the advanced Naegele's rule which considers your specific cycle length. The tool provides your current gestational age (weeks/days), trimester, and even the baby's zodiac sign.

For Business Projects

Select "Project/Business" to calculate deadlines. Unlike simple calendar additions, this tool allows you to exclude weekends (Saturdays and Sundays) and major national holidays for USA, India, Pakistan, and UK, ensuring your project timeline is realistic.

Data Privacy

All calculations happen directly in your browser. We do not store your personal data on any server. You can export your results to PDF or CSV for your personal records.