Date Range Calculator
Understand a date range with calendar-day totals, optional business-day counting, and inclusive/exclusive start/end rules.
Enter start and end dates to calculate a date range.
How it works
Enter a start date and end date, then choose whether to include the start and end boundaries. Inclusive counting includes selected boundary dates; exclusive counting removes selected boundaries before totals are calculated.
Calendar days are always shown for the selected range method. You can optionally show business-day totals for the same adjusted range, with weekend exclusion and optional sample US federal holiday exclusion.
Common uses
Project schedules, payroll periods, reporting windows, billing periods, and business deadline planning when the exact counting method needs to be explicit.
Project schedules
Measure a project window and compare calendar-day duration with weekday-only execution time.
Payroll periods
Validate how many days are in a pay period and whether boundary dates are included by policy.
Reporting windows
Count monthly or weekly reporting ranges with explicit inclusive or exclusive boundaries.
Billing periods
Check service windows and invoice periods when agreements define boundary-date behavior.
Business deadlines
Estimate both total calendar span and business-day span in the same date range.
FAQ
- How do I calculate a date range?
- Enter the start and end dates, then choose whether the start date and end date are included. The calculator returns calendar days for that method, plus optional business-day totals.
- Should the start date be included?
- Include the start date when your policy says counting begins on day one of the start date. Exclude it when counting starts on the next day.
- What is an inclusive date range?
- An inclusive range counts selected boundary dates as part of the total. If both start and end are included, both dates contribute to the result.
- Can I count only business days?
- Yes. Enable business or working-day counting to see weekday totals for the same range. You can optionally exclude the sample US federal holiday list as well.
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