Due Date Calculator
Calculate pregnancy due date using Naegele's Rule.
Ad Space (728x90 Leaderboard)
Formula
Due Date = LMP + 280 days (Naegele's Rule)
Enter Your Details
—
Estimated Due Date
—
Current Weeks
—
Trimester
—
Days Left
Ad Space (In-Article Responsive)
How This Due Date Calculator Works
This calculator uses established scientific formulas validated in peer-reviewed literature. All calculations run locally in your browser — no data is sent to any server.
Frequently Asked Questions
How accurate is this?
Uses well-established formulas accurate for most people. Individual variation is normal.
Is my data stored?
No. All calculations run in your browser. No data collected.
Explore More Tools
Explore more tools in our calculator collection.
Related Calculators
Ad Space (728x90)