CalcSuite Pro

Date Difference Calculator

Find the number of days, weeks, months, or business days between any two dates. Includes a detailed year/month/day breakdown.

Quick Answer

A date difference calculator finds the number of days, weeks, months, or business days between two dates.

How to Use This Calculator

  1. 1

    Enter the start date using the date picker or type it in YYYY-MM-DD format.

  2. 2

    Enter the end date.

  3. 3

    Toggle 'Include end date' if you want to count the end date as part of the range.

  4. 4

    Click Calculate to see total days, weeks, months, and business days.

  5. 5

    Review the year/month/day breakdown for a more detailed result.

Frequently Asked Questions

Enter the start date and end date, then click Calculate. The result shows total days, weeks, months, and a years/months/days breakdown.

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Last updated: June 2026