Free tool
Due date calculator
Estimate your due date and see your trimester milestones at a glance.
Estimates for planning, not birth control. Talk with your provider.
Your estimate will appear here
Add a date to see your estimated due date and trimester milestones. Planning for a baby? Try the ovulation calculator.
Questions
About this calculator
How is the due date estimated?
From the first day of your last period, the estimate adds 40 weeks and adjusts for your cycle length. From a conception or transfer date, it counts forward from that day instead.
My provider gave me a different date. Which one is right?
Go with your provider. This calculator is a planning estimate, and your provider has more information about your pregnancy.
Can SwyftMom keep track of this for me?
Yes. When you create a free account, SwyftMom follows your pregnancy week by week from your due date, and you can update it any time.
Follow your pregnancy week by week.
Appointments, symptoms, kicks and your family, all in one calm place.