Business Days Calculator
Working days between two dates, or the date some business days ahead, holidays included.
Works in your browser. Nothing you type is sent to us.
Business days
Holiday dates are the ones the US Office of Personnel Management publishes; see the FAQ.
Worked out in your browser. Nothing you type is sent to us.
Business Days Calculator at a glance
- Price
- Free
- Data sent to us
- None, it runs in your browser
- Sign-up
- Not needed
- Counts
- Days, business days, weeks, months, years
- Holidays
- US federal, 2026 and 2027, from OPM
- Also
- Add or subtract from a date
How to use Business Days Calculator
- Choose the datesSet From and To, or press From today. Tick Count the end date too if both days count.
- Choose what to skipLeave weekends ticked for business days, and tick US federal holidays to skip those as well.
- Or add to a dateChoose Add or subtract days, set the start date, the number and the unit, and read the date it lands on.
Set the two dates and read the number of working days between them, with Saturdays, Sundays and the US federal holidays for 2026 and 2027 taken out and the holidays in the span named. Switch to Add or subtract days with the unit set to business days to find the deadline a number of working days ahead, for a reply due in ten business days or a shipment promised in five.
How it works
Business Days Calculator is a web page that does its work on your own device. Everything you type or choose is worked out by your browser and never sent to a server, so nothing is stored and there is nothing to delete. There is no account, no sign-up and no limit on how often you use it.
Observed holidays
When a federal holiday falls on a Saturday it is observed on the Friday before, and on a Sunday the Monday after, which is how the Office of Personnel Management lists them and how this calculator skips them.
Questions
Are state holidays or Good Friday included?
No. Only the eleven federal holidays are built in. For state, bank or company holidays, note the days and subtract them from the count.
Other shortcuts
Date Difference Calculator · Days Between Dates
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