Calculate Days Until Due Date

Set "From" to today and "To" to your estimated due date. The result in weeks tells you your remaining weeks of pregnancy at a glance.

Pregnancy is typically 40 weeks (280 days) from the last menstrual period. Use the working-days metric to see how many work weeks remain.

For maternity-leave planning, use working days excluding weekends to count back from your start date for unused vacation/PTO.

After birth, the same tool helps track baby milestones — set "From" to the birthday to instantly see baby's age in days, weeks, or months.