Health & Fitness
Pregnancy Due Date Calculator
Calculate your estimated due date from the first day of your last menstrual period (LMP) or conception date.
Plug in some numbers —
we'll crunch.
How to use
- 1Choose your calculation method: LMP (most common) or conception date.
- 2Enter the date — either the first day of your last period or your conception date.
- 3For LMP method: set your average cycle length if different from 28 days.
- 4See your estimated due date and key pregnancy milestones.
Frequently asked questions
⚠ For informational purposes only. Your doctor's ultrasound-based date is more accurate. Always follow your healthcare provider's guidance.
About this calculator
Calculate your estimated due date from the first day of your last menstrual period (LMP) or conception date.