Date difference — days, weeks, months between two dates
Enter two dates and get the gap as years/months/days, total days, weeks and business days. It calculates in your browser (0 uploads, works offline).
How to use it
- Enter the dates or values in the fields above.
- The result and a plain-language explanation appear instantly.
- Copy or Download the result.
FAQ
How do I calculate the number of days between two dates for free?
Enter the two dates and the total number of days appears instantly in your browser, along with a years-months-days breakdown, weeks and business days — no upload, computed with exact calendar arithmetic.
How are business days counted?
Business days exclude Saturdays and Sundays across the range. To also exclude specific public or company holidays, use the business-days calculator, which takes a holiday list.
Does the order of the dates matter?
No — the tool always reports a positive duration regardless of which date you put first.
Is my data uploaded?
No. The calculation is local and nothing is stored; it works offline.
Limits
Business days here count weekends only as non-working. Enter dates as YYYY-MM-DD.
Related
The age calculator is a specialised difference from a birth date; date + N days projects forward or back.
Bookmark this page (Ctrl+D, or ⌘D on Mac) or install the app — it works offline the next time you need it.