Days Between Dates Calculator
Find exactly how many days, weeks, months and years lie between any two dates.
Show solution steps
What is the Days Between Dates Calculator?
A days-between calculator counts the exact gap between two calendar dates — useful for measuring notice periods and contract durations, tracking pregnancy timelines, planning project schedules, or simply satisfying curiosity about how long ago (or how far away) a date is.
How to Calculate
Enter a start date and an end date. The calculator finds the absolute number of days between them, accounting correctly for varying month lengths and leap years, then also expresses that gap in approximate weeks (dividing by 7), months (dividing by 30.44) and years (dividing by 365.25) for a quick sense of scale.
Formula
Days = |end date − start date|
How to Use
- Enter your details in the fields above.
- The result updates instantly as you type.
- Use Copy, Print or Download PDF to save your result.
Frequently Asked Questions
Does it count both end dates?
It counts the number of days from the start date to the end date. Adjust by one if you need to include or exclude a specific endpoint.
Was this calculator helpful?
Thanks for your feedback!