How do I use the Days Between Dates Calculator?

Set the start date using the date picker or type it directly. Set the end date. The calculator updates automatically. Check the include end date box if you want to count both the start and end dates. Use the quick buttons to preset common date ranges like today plus 30 days. Review the breakdown showing days, weeks, months, years, hours, and weekdays. Use the Add Days section to find a future or past date from any starting point.

Is the Days Between Dates Calculator free?

Yes, the Days Between Dates Calculator is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

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utility

Days Between Dates Calculator

Calculate the exact number of days, weeks, months, and years between two dates. Includes weekday count, detailed breakdown, and add/subtract days tool.

days between datesdate calculatordate differencehow many daysday counterweekday calculatorbusiness days

Start date End date

Include end date in count

Days

Weeks

Months

Years

Hours

Weekdays

Detailed Breakdown

Add/Subtract Days

From date Days

How to use

Calculate the Exact Time Between Any Two Dates

1 Set the start date using the date picker or type it directly.
2 Set the end date. The calculator updates automatically.
3 Check the include end date box if you want to count both the start and end dates.
4 Use the quick buttons to preset common date ranges like today plus 30 days.
5 Review the breakdown showing days, weeks, months, years, hours, and weekdays.
6 Use the Add Days section to find a future or past date from any starting point.

Counting days between dates is something people need constantly — project deadlines, vacation planning, contract terms, age calculations, and pregnancy due dates all require accurate date math. This tool handles all the edge cases including leap years and varying month lengths.

The weekday count is especially useful for business planning. The detailed breakdown converts the duration into every common unit so you do not need to do mental math. The add and subtract feature is handy for finding exact dates in the future or past.

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