About the Date Difference Calculator
The Date Difference Calculator tells you exactly how much time lies between two dates — in days, weeks and months. It is perfect for counting down to events, working out durations, or measuring how long ago something happened.
How to use the Date Difference Calculator
- Pick a start date.
- Pick an end date.
- Click Calculate to see the days, weeks and months between them.
Frequently Asked Questions
How do I find the number of days between two dates?
Select both dates and the calculator subtracts one from the other to give the exact number of days, weeks and months.
Does it count the end date?
It counts the total days between the two dates. Add one day if you need both the start and end dates included.
Can I use future dates?
Yes — it works with past and future dates, so you can count down to upcoming events too.
Is the Date Difference Calculator free?
Yes, it is free with no sign-up required.