✨ Pregnancy Planning Tool

Conception Date Calculator

Estimate your likely conception date using your due date or baby's birth date. Fast, accurate, mobile-friendly, and completely free.

Calculate Your Estimated Conception Date

Calculation Method

Select Date

Voice support uses the Web Speech API.

Estimated Conception Date

Designed for pregnancy planning and tracking.

How is conception date estimated?

The calculator estimates conception by subtracting approximately 266 days from the due date.

Is this 100% accurate?

No. Conception estimates are approximate and may vary by individual pregnancy circumstances.

Can I use my baby's birth date?

Yes. The calculator supports both due date and birth date calculations.

Designed to add, substract dates and other date calculation.