Date Difference Calculator Online — Days Between Dates
Calculate days, weeks, months, and years between two dates online for free. Instant date difference, no signup. Handles leap years automatically.
7 days (1 weeks and 0 days), or 0 years, 0 months, 7 days
Calculate the number of days, weeks, months, and years between two dates. See exact time spans for project planning, age calculation, and deadline tracking.
How to use Date Difference Calculator Online — Days Between Dates
- Enter the start date.
- Enter the end date.
- Read the difference in days, weeks, months, and years.
Features
- Shows difference in multiple units: days, weeks, months, years.
- Accounts for leap years and varying month lengths.
- Supports dates from 1900 to 2100.
- Option to include or exclude the end date.
FAQ
How are months calculated in the difference?
Months are calculated as complete calendar months between the two dates. For example, Jan 15 to Mar 14 is 1 month and 27 days, not 2 months, because March 15 hasn't been reached yet.
Can I count business days only?
This calculator counts all calendar days. For business day calculations, use a workday calculator that accounts for weekends and holidays specific to your region.
What if the start date is after the end date?
The calculator shows the absolute difference, so the order doesn't matter. The result is always positive regardless of which date comes first.