Date Difference Calculator
Find the exact gap between any two dates in days, weeks, months, and years. Toggle the business-days option to exclude weekends from the count.
Days
Weeks
Months
Years
Business days (Mon–Fri)
How to use
- Enter a start date and end date using the date pickers — the difference appears instantly.
- The result updates automatically if you swap the order of the dates (the calculator always takes the absolute difference).
- Check Show business days to also display the count of weekdays (Mon–Fri) between the two dates.
Frequently asked questions
- Is this calculator free?
- Yes, completely free with no signup and no usage limits.
- Does it send any data to a server?
- No. All calculations run in your browser — your dates never leave your device.
- Does it work on mobile?
- Yes. Works in Safari, Chrome, and Firefox on iOS and Android.