Due Date Calculator

How does the calculator work?

This due date calculator is based on the fact that the average human pregnancy lasts about 280 days from the last menstrual period (LMP). Remember that this due date is only an approximation. Most women will deliver around this date.

Another simple way of calculating your due date is by adding 7 days to your LMP and then subtracting 3 months.

Read more about the duration of a human pregnancy.

Due date calculator