Pregnancy Due Date Calculator – Estimate Your Baby’s Arrival

Use our free Pregnancy Calculator to estimate your baby’s due date based on the first day of your last period or conception date.

How It Works

1. The calculator adds 280 days (40 weeks) to the first day of your last menstrual period (LMP) to estimate your due date.
2. You can also calculate based on your conception date if known.
3. Results are an estimate—most babies arrive within 2 weeks before or after the predicted date.

Note

This tool provides an approximate due date. Every pregnancy is unique, and factors like cycle length and health conditions can affect accuracy. Always consult your healthcare provider for personalized guidance.