Find out exactly how many weeks are between two dates, including partial weeks and remaining days.
Weeks are a more natural unit than days for a lot of planning — project timelines, pregnancy tracking, countdowns to events, and scheduling all work better when you can see the number of weeks involved rather than a three-digit day count.
Enter two dates and this calculator returns the exact number of complete weeks between them, plus the remaining days. It also shows the total in days for reference.
Particularly useful for pregnancy week counting, project planning in weekly sprints, working out lead times for orders, and tracking how long a process has been running.
Yes — the result shows complete weeks plus remaining days. So 16 days is shown as 2 weeks and 2 days.
Pregnancy is measured in weeks from the first day of the last menstrual period. If you know your LMP, entering it as the start date and today as the end date gives you exactly how many weeks pregnant you are.
Yes — just enter today (or any date) as the start and a future date as the end. The result is the number of weeks until that date.