Count how many weeks fall between two dates, shown as a decimal, as full weeks plus leftover days, and as a total day count.
How it works
- Pick the first date on the calendar.
- Pick the second date on the calendar.
- The engine finds the difference and displays it as exact weeks.
Frequently asked questions
Pregnancy weeks?
For gestational age, use the Due Date Calculator, which counts from your last period with the standard medical convention.
Does order matter?
No — the tool uses the absolute difference between the dates.
How are partial weeks shown?
As both a decimal (e.g. 23.43 weeks) and as full weeks with the remaining days.