About this calculator
Whether you are counting down to a deadline, working out a notice period, or measuring how long ago something happened, this calculator gives the exact gap between any two dates — in total days and weeks, and as a tidy years-months-days breakdown.
How it works
The calculator finds the number of whole days between the two dates, then expresses that gap as weeks and as full years, months and days. The order does not matter — it always shows the positive difference.
Frequently asked questions
Does the order of the dates matter?
No. The calculator always shows the positive difference, whichever date you enter first.
Are both dates included?
It counts the number of days between the two dates. Add one day if you need to count both the start and end days inclusively.
Does it handle leap years?
Yes — it uses the real calendar, so February 29 and leap years are counted correctly.
What can I use it for?
Deadlines, notice periods, project durations, anniversaries, countdowns and more.