Free tool · no sign-up
Business Days Calculator
Count the working days in a project, or find the date that is a number of business days away.
Weekdays off that should not count
Result
How it’s calculated
Saturdays and Sundays are skipped. Public holidays vary by country, so enter how many fall on weekdays in your period and they are taken off.
business days = weekdays in range − holidays
Worked example
From Monday 2 November to Friday 13 November 2026 there are 10 business days. Adding 10 business days to Monday 2 November lands on Monday 16 November.
Related tools
Questions
How many business days are in a month?
Usually 20–23, depending on the month and how weekends fall, before public holidays.
What does '10 business days' mean?
Ten weekdays, not counting weekends or public holidays. It is normally two calendar weeks.
Doing these numbers every month? Accounting software can automate invoices, reminders and tax reports.
See optionsEmbed this calculator
Free to use on your own website or blog. Paste this code where you want it to appear.